-------------------------------------------------

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                   Form 10 - Q

             [X] Quarterly Report Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

                  for the quarterly period ended March 30, 2003

             [ ] Transition report pursuant to Section 13 or 15(d)
                    of the Securities Exchange Act of 1934.

                        For the Transition Period From to

                         Commission File Number 0-19084
                                PMC-Sierra, Inc.
             (Exact name of registrant as specified in its charter)

                 A Delaware Corporation - I.R.S. NO. 94-2925073
                               3975 Freedom Circle
                              Santa Clara, CA 95054
                                 (408) 239-8000

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such period that the registrant was required to
file such reports), and (2) has been subject to such filing requirements for the
past 90 days.

                             Yes ___X____ No _______

Indicate  by check mark  whether the  registrant  is an  accelerated  filer (as
defined in Rule 12b-2 of the Act).

                             Yes ___X____ No _______


             Common shares outstanding at May 08, 2003 - 168,959,602
                ------------------------------------------------




                                      INDEX




PART I - FINANCIAL INFORMATION

Item 1.   Financial Statements                                              Page

          -      Condensed consolidated statements of operations             3

          -      Condensed consolidated balance sheets                       4

          -      Condensed consolidated statements of cash flows             5

          -      Notes to the consolidated financial statements              6


Item 2.   Management's Discussion and Analysis of Financial
          Condition and Results of Operations                                13

Item 3.   Quantitative and Qualitative Disclosures About
          Market Risk                                                        31

Item 4.   Controls and Procedures                                            33


PART II - OTHER INFORMATION

Item 6.   Exhibits and Reports on Form 8 - K                                 33

Signatures                                                                   34

Certifications                                                               35






                         Part I - FINANCIAL INFORMATION
                          Item 1 - Financial Statements

                                PMC-Sierra, Inc.
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                  (in thousands, except for per share amounts)
                                   (unaudited)





                                                                           Three months ended
                                                                     ------------------------------
                                                                        Mar 30,          Mar 31,
                                                                         2003             2002
                                                                                     
Net revenues
 Networking                                                           $   55,386      $   46,852
 Non-networking                                                                -           4,590
                                                                     -------------   --------------
Total                                                                     55,386          51,442

Cost of revenues                                                          21,885          20,543
                                                                     -------------   --------------
 Gross profit                                                             33,501          30,899


Other costs and expenses:
 Research and development                                                 30,948          36,234
 Marketing, general and administrative                                    12,616          17,111
 Amortization of deferred stock compensation:
  Research and development                                                   399             921
  Marketing, general and administrative                                       13              66
 Restructuring costs                                                       6,644               -
                                                                     -------------   --------------
Loss from operations                                                     (17,119)        (23,433)

Interest and other income, net                                               548           1,421
Gain on investments                                                          531           2,445
                                                                     -------------   --------------
Loss before recovery of income taxes                                     (16,040)        (19,567)

Recovery of income taxes                                                  (4,525)         (5,887)
                                                                     -------------   --------------
Net loss                                                              $  (11,515)     $  (13,680)
                                                                     =============   ==============

Net loss per common share - basic and diluted                         $    (0.07)     $    (0.08)
                                                                     =============   ==============

Shares used in per share calculation - basic and diluted                 171,402         169,513


See notes to the consolidated financial statements.




                                       3





                                PMC-Sierra, Inc.
                           CONSOLIDATED BALANCE SHEETS
                        (in thousands, except par value)




                                                                  Mar 30,          Dec 29,
                                                                    2003             2002
                                                                 (unaudited)
                                                                               

ASSETS:
Current assets:
 Cash and cash equivalents                                        $  139,360       $   70,504
 Short-term investments                                              261,693          340,826
 Restricted cash                                                       5,287            5,329
 Accounts receivable, net of allowance for doubtful
  accounts of $2,812 ($2,781 in 2001)                                 15,697           16,621
 Inventories                                                          23,820           26,420
 Deferred tax assets                                                   1,080            1,083
 Prepaid expenses and other current assets                            13,814           15,499
 Short-term deposits for wafer fabrication capacity                   17,213                -
                                                                ---------------  ---------------
  Total current assets                                               477,964          476,282

Investment in bonds and notes                                        146,325          148,894
Other investments and assets                                          20,000           21,978
Deposits for wafer fabrication capacity                                4,779           21,992
Property and equipment, net                                           44,459           51,189
Goodwill and other intangible assets, net                              8,097            8,381
                                                                ---------------  ---------------
                                                                  $  701,624       $  728,716
                                                                ===============  ===============
LIABILITIES AND STOCKHOLDERS' EQUITY:
Current liabilities:
 Accounts payable                                                 $   19,081       $   24,697
 Accrued liabilities                                                  49,183           53,530
 Income taxes payable                                                 17,251           21,553
 Accrued restructuring costs                                         127,364          129,499
 Deferred income                                                      16,200           17,982
                                                                ---------------  ---------------
  Total current liabilities                                          229,079          247,261

Convertible subordinated notes                                       275,000          275,000
Deferred tax liabilities                                               1,886            2,764

PMC special shares convertible into 3,146 (2002 - 3,196)
 shares of common stock                                                4,968            5,052

Stockholders' equity
 Common stock and additional paid in capital, par value $.001:
  900,000 shares authorized; 168,489 shares issued and
  outstanding (2002 - 167,400)                                       838,678          834,265
 Deferred stock compensation                                            (746)          (1,158)
 Accumulated other comprehensive income                                2,681            3,939
 Accumulated deficit                                                (649,922)        (638,407)
                                                                ---------------  ---------------
  Total stockholders' equity                                         190,691          198,639
                                                                ---------------  ---------------
                                                                  $  701,624       $  728,716
                                                                ===============  ===============
See notes to the consolidated financial statements.



                                       4







                                PMC-Sierra, Inc.
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)
                                   (unaudited)

                                                                                Three Months Ended
                                                                         ------------------------------
                                                                             Mar 30,        Mar 31,
                                                                              2003           2002
                                                                                      
Cash flows from operating activities:
 Net loss                                                                 $  (11,515)      $ (13,680)
 Adjustments to reconcile net loss to net cash
 used in operating activities:
  Depreciation of property and equipment                                       8,023          10,744
  Amortization of other intangibles                                              284             285
  Amortization of deferred stock compensation                                    412             987
  Amortization of debt issuance costs                                            391             391
  Gain on sale of investments and other assets                                  (518)         (2,445)
  Changes in operating assets and liabilities:
   Accounts receivable                                                           924             450
   Inventories                                                                 2,600           2,661
   Prepaid expenses and other current assets                                   1,685          (5,005)
   Accounts payable and accrued liabilities                                   (9,963)          1,139
   Income taxes payable                                                       (4,302)         (5,003)
   Accrued restructuring costs                                                (2,135)        (10,044)
   Deferred income                                                            (1,782)         (1,828)
                                                                         --------------  --------------
    Net cash used in operating activities                                    (15,896)        (21,348)
                                                                         --------------  --------------

Cash flows from investing activities:
 Change in restricted cash                                                        42               -
 Purchases of short-term investments                                         (67,045)         (5,439)
 Proceeds from sales and maturities of short-term investments                135,590          47,416
 Purchases of long-term bonds and notes                                      (29,073)        (38,803)
 Proceeds from sales and maturities of long-term bonds and notes              42,240               -
 Purchases of other  investments                                                (700)           (492)
 Proceeds from sales of other investments                                        676           4,274
 Purchases of property and equipment                                          (1,307)           (531)
                                                                         --------------  --------------
    Net cash provided by investing activities                                 80,423           6,425
                                                                         --------------  --------------


Cash flows from financing activities:
 Repayment of capital leases and long-term debt                                    -            (108)
 Proceeds from issuance of common stock                                        4,329           5,049
                                                                         --------------  --------------
    Net cash provided by financing activities                                  4,329           4,941
                                                                         --------------  --------------

Net increase (decrease) in cash and cash equivalents                          68,856          (9,982)
Cash and cash equivalents, beginning of the period                            70,504         152,120
                                                                         --------------  --------------
Cash and cash equivalents, end of the period                               $ 139,360       $ 142,138
                                                                         ==============  ==============


Supplemental disclosures of cash flow information:
  Cash paid for interest                                                   $   5,156       $   5,414

See notes to the consolidated financial statements.


                                       5





                                PMC-Sierra, Inc.
                 NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
                                   (unaudited)

NOTE  1.   Summary of Significant Accounting Policies

Description  of business.  PMC-Sierra,  Inc (the  "Company"  or "PMC")  designs,
develops,  markets and supports high-speed broadband  communications and storage
semiconductors  and  MIPS-based  processors  for service  provider,  enterprise,
storage,  and  wireless  networking  equipment.  The  Company  offers  worldwide
technical  and sales  support  through a network of  offices  in North  America,
Europe and Asia.

Basis of presentation.  The accompanying  Consolidated Financial Statements have
been  prepared  pursuant  to the rules and  regulations  of the  Securities  and
Exchange  Commission  ("SEC").  Certain  information  and  footnote  disclosures
normally  included in annual  financial  statements  prepared in accordance with
generally accepted accounting principles have been condensed or omitted pursuant
to those rules or regulations.  The interim financial  statements are unaudited,
but reflect all adjustments that are, in the opinion of management, necessary to
provide a fair  statement of results for the interim  periods  presented.  These
financial  statements  should  be  read in  conjunction  with  the  consolidated
financial statements and related notes thereto in the Company's Annual Report on
Form 10-K for the year ended  December 29, 2002.  The results of operations  for
the interim periods are not necessarily  indicative of results to be expected in
future periods.

Estimates.  The preparation of financial  statements and related  disclosures in
conformity with accounting principles generally accepted in the United States of
America  requires  management to make estimates and assumptions  that affect the
amounts reported in the financial  statements and accompanying notes.  Estimates
are used  for,  but not  limited  to,  the  accounting  for  doubtful  accounts,
inventory  reserves,  depreciation and amortization,  asset  impairments,  sales
returns,  warranty costs,  income taxes,  restructuring  costs and other special
charges, and contingencies. Actual results could differ from these estimates.

Inventories.  Inventories are stated at the lower of cost (first-in,  first out)
or market (estimated net realizable value). The components of inventories are as
follows:



                                           Mar 30,              Dec 29,
(in thousands)                              2003                 2002
- ------------------------------------------------------------------------

Work-in-progress                          $  8,674             $ 11,409
Finished goods                              15,146               15,011
- ------------------------------------------------------------------------
                                          $ 23,820             $ 26,420
                                         ===============================


                                       6



Product warranties.  The Company provides a one-year limited warranty on most of
its standard  products and accrues for the cost of this  warranty at the time of
shipment.  The Company estimates its warranty costs based on historical  failure
rates and  related  repair or  replacement  costs.  The change in the  Company's
accrued  warranty  obligations  from  December  31, 2002 to March 30, 2003 is as
follows:



(in thousands)
- -------------------------------------------------------------------------------

Beginning balance                                                    $   2,399
Accrual for new warranties issued                                          274
Reduction for payments (in cash or in kind)                               (198)
Adjustments related to changes in estimate of warranty accrual              34
- -------------------------------------------------------------------------------
                                                                     $   2,509
                                                                    ===========



Stock based compensation.  The Company accounts for stock-based  compensation in
accordance with the intrinsic value method prescribed by APB Opinion No. 25 (APB
25),  "Accounting for Stock Issued to Employees".  Under APB 25, compensation is
measured as the amount by which the market price of the underlying stock exceeds
the  exercise  price of the option on the date of grant;  this  compensation  is
amortized over the vesting period.

Pro forma  information  regarding  net income  (loss) and net income  (loss) per
share is required by SFAS 123 for awards  granted or modified after December 31,
1994 as if the Company had  accounted  for its  stock-based  awards to employees
under  the fair  value  method  of SFAS  123.  The fair  value of the  Company's
stock-based  awards to employees  was  estimated  using a  Black-Scholes  option
pricing model. The  Black-Scholes  model was developed for use in estimating the
fair value of traded  options  that have no vesting  restrictions  and are fully
transferable.  In addition, the Black-Scholes model requires the input of highly
subjective  assumptions  including the expected stock price volatility.  Because
the Company's stock-based awards to employees have characteristics significantly
different from those of traded  options,  and because  changes in the subjective
input assumptions can materially affect the fair value estimate, in management's
opinion,  the  existing  models do not  necessarily  provide a  reliable  single
measure of the fair value of its stock-based awards to employees. The fair value
of the  Company's  stock-based  awards  to  employees  was  estimated  using the
multiple option  approach,  recognizing  forfeitures as they occur,  assuming no
expected dividends and using the following weighted average assumptions:


                                  Options                      ESPP
                          -------------------------- --------------------------
                            March 30,    March 31,     March 30,    March 31,
                              2003         2002          2003         2002
- -------------------------------------------------------------------------------
Expected life (years)         2.9          2.7           1.1          0.6
Expected volatility           101%         101%          107%         119%
Risk-free interest rate       1.9%         2.8%          1.5%         2.9%


The  weighted-average  estimated fair values of employee  stock options  granted
during the first  three  months of 2003 and 2002 were $2.98 and $8.65 per share,
respectively.

                                       7


If the computed fair values for the first three months of 2003 and 2002 had been
amortized to expense over the vesting period of the awards as prescribed by SFAS
123, net loss and net loss per share would have been:




                                                                        Three Months Ended
                                                                  ------------------------------

                                                                    Mar 30,           Mar 31,
(in thousands, except per share amounts)                              2003              2002
- ------------------------------------------------------------------------------------------------
                                                                                  
Net loss, as reported                                              $ (11,515)        $ (13,680)

Adjustments:
    Additional stock-based employee compensation expense
    under fair value based method for all awards                     (22,532)          (30,914)
                                                                  ------------------------------
Net loss, adjusted                                                 $ (34,047)        $ (44,594)
                                                                  ============      ============

Basic and diluted net loss per share, as reported                  $   (0.07)        $   (0.08)
                                                                  ============      ============

Basic and diluted net loss per share, adjusted                     $   (0.20)        $   (0.26)
                                                                  ============      ============


Recently issued accounting standards.

In April 2003 the Financial  Accounting  Standards Board (FASB) issued Statement
No. 149 (SFAS No. 149), "Amendment of SFAS No. 133 on Derivative Instruments and
Hedging   Activities".   The  Statement  amends  and  clarifies  accounting  for
derivative  instruments,  including certain derivative  instruments  embedded in
other contracts,  and for hedging  activities under SFAS No. 133. In particular,
it (1)  clarifies  under  what  circumstances  a contract  with an  initial  net
investment  meets the  characteristic  of a derivative  as discussed in SFAS No.
133, (2) clarifies when a derivative contains a financing component,  (3) amends
the  definition of an underlying  (as defined within SFAS No. 149) to conform it
to the language used in FASB  Interpretation  No. 45, "Guarantor  Accounting and
Disclosure  Requirements  for  Guarantees,   Including  Indirect  Guarantees  of
Indebtedness of Others" and (4) amends certain other existing pronouncements.

SFAS No. 149 is effective for contracts  entered into or modified after June 30,
2003, except as stated below and for hedging relationships designated after June
30, 2003.

The provisions of SFAS No. 149 that relate to SFAS No. 133 Implementation Issues
that have been  effective for fiscal  quarters that began prior to June 15, 2003
should  continue to be applied in  accordance  with their  respective  effective
dates. In addition, certain provisions relating to forward purchases or sales of
when-issued  securities  or other  securities  that do not yet  exist  should be
applied to existing  contracts as well as new contracts  entered into after June
30, 2003. SFAS No. 149 should be applied prospectively.

The Company will adopt the provisions of SFAS No. 149 for any contracts  entered
into after June 30,  2003 and are not  affected  by  Implementation  Issues that
would require  earlier  adoption.  PMC does not expect that the adoption of this
Statement will have a material impact on its results of operations and financial
position.

In January 2003, the FASB issued Interpretation No. 46 (FIN 46),  "Consolidation
of Variable Interest Entities", an Interpretation of ARB No. 51. FIN 46 requires
certain variable interest entities to be consolidated by the primary beneficiary
of  the  entity  if  the  equity  investors  in  the  entity  do  not  have  the
characteristics  of a controlling  financial  interest or do not have sufficient
equity at risk for the  entity to  finance  its  activities  without  additional
subordinated  financial support from other parties.  FIN 46 is effective for all
new variable  interest  entities created or acquired after January 31, 2003. For
variable  interest  entities  created or acquired prior to February 1, 2003, the
provisions  of FIN 46 must be applied  for the first  interim  or annual  period
beginning  after June 15, 2003. PMC is currently  evaluating FIN 46 but does not
expect that the adoption of FIN 46 will have a material  effect on the Company's
results of operations, financial condition or disclosures.

                                       8


In December 2002, the FASB issued Statement of Financial Accounting Standard No.
148 (SFAS 148),  "Accounting  for  Stock-Based  Compensation  -  Transition  and
Disclosure". SFAS 148 provides alternative methods of transition for a voluntary
change to the fair value based method of  accounting  for  stock-based  employee
compensation.  SFAS 148 also  requires  prominent  disclosure in the "Summary of
Significant Accounting Policies" of both annual and interim financial statements
about the method of accounting for  stock-based  employee  compensation  and the
effect of the method used on reported results.  The Company adopted SFAS 148 for
the 2002 fiscal year end.  Adoption of this  statement  affected the location of
the Company's disclosure within the Consolidated Financial Statements,  but will
not impact the Company's  results of operation or financial  position unless the
Company changes to the fair value method of accounting for stock-based  employee
compensation.

In  November  2002,  the  FASB  issued  FASB  Interpretation  No.  45 (FIN  45),
"Guarantor's  Accounting and Disclosure  Requirements for Guarantees,  Including
Indirect  Guarantees  of  Indebtedness  of Others".  FIN 45  requires  that upon
issuance of a guarantee,  a guarantor  must  recognize a liability  for the fair
value  of an  obligation  assumed  under  a  guarantee.  FIN  45  also  requires
additional  disclosures  by a  guarantor  in its  interim  and annual  financial
statements  about  the  obligations   associated  with  guarantees  issued.  The
recognition  provisions  of FIN 45 are  effective  for any  guarantees  that are
issued or  modified  after  December  31,  2002.  The  Company  has  adopted the
requirements  of FIN 45, which have not had a material  impact on the  Company's
results of operations or financial position.

In June 2002, the Financial  Accounting  Standards Board (FASB) issued Statement
of  Financial  Accounting  Standard  No. 146 (SFAS 146),  "Accounting  for Costs
Associated  with  Exit or  Disposal  Activities".  SFAS  146  requires  that the
liability for a cost associated with an exit or disposal  activity be recognized
at its fair value when the liability is incurred.  Under  previous  guidance,  a
liability  for certain  exit costs was  recognized  at the date that  management
committed  to an exit plan.  In January  2003,  the Company  announced a further
restructuring  plan,  the costs of which have been  accounted  for in accordance
with SFAS 146.


NOTE  2.   Restructuring and Other Costs

Restructuring - January 16, 2003

On January 16, 2003, the Company implemented a corporate restructuring to reduce
operating   expenses.   The  restructuring  plan  included  the  termination  of
approximately  175  employees  and the  closure of design  centers in  Maryland,
Ireland  and India.  PMC  recorded a  restructuring  charge of $6.6  million for
workforce  reduction and facility lease costs in the first quarter.  The Company
will record further  restructuring  charges in connection  with this plan in the
second and third quarters of 2003 as such liabilities are incurred.

The  following  summarizes  the  activity  in  the  January  2003  restructuring
liability during the three-month period ended March 30, 2003:



                                       9




                                                            Restructuring
                         Total Charge          Cash          Liability at
(in thousands)          January 16, 2003     Payments       March 30, 2003
- ----------------------------------------------------------------------------

Workforce reduction        $   6,384        $ (2,154)         $  4,230

Facility lease
 settlement costs                260             (59)              201

- ----------------------------------------------------------------------------

Total                      $   6,644        $ (2,213)         $  4,431
                       =====================================================




Restructuring - October 18, 2001

PMC implemented a restructuring plan in the fourth quarter of 2001 to reduce its
operating cost structure.  This  restructuring  plan included the termination of
341  employees,  the  consolidation  of additional  excess  facilities,  and the
curtailment of additional  research and development  projects.  As a result, the
Company recorded a restructuring  charge of $175.3 million in the fourth quarter
of 2001.

The  following  summarizes  the  activity  in  the  October  2001  restructuring
liability during the first quarter:



                               Restructuring                     Restructuring
                                Liability at        Cash          Liability at
(in thousands)                December 31, 2002   Payments       March 30, 2003
- --------------------------------------------------------------------------------

Facility lease and
 contract settlement costs      $ 129,499        $ (6,566)         $ 122,933
                              ==================================================



The Company has  completed  the  restructuring  activities  contemplated  in the
October  2001  plan,  but  has  not  yet  disposed  of all  its  surplus  leased
facilities.


NOTE  3.   Segment Information

The Company has two operating segments:  networking and non-networking products.
The networking  segment consists of semiconductor  devices and related technical
service  and support to  equipment  manufacturers  for use in service  provider,
enterprise,  and storage area networking equipment.  The non-networking  segment
consists of custom  user  interface  products.  The  Company is  supporting  the
non-networking  products for existing customers,  but has decided not to develop
any further products of this type.

The accounting  policies of the segments are the same as those  described in the
summary of significant  accounting  policies  contained in the Company's  Annual
Report on Form 10-K. The Company evaluates performance based on net revenues and
gross profits from operations of the two segments.


                                       10



                                          Three Months Ended
                                 ------------------------------------
                                      Mar 30,              Mar 31,
(in thousands)                         2003                 2002
- ---------------------------------------------------------------------

Net revenues

 Networking                        $    55,386           $   46,852
 Non-networking                              -                4,590
- ---------------------------------------------------------------------
 Total                             $    55,386           $   51,442
                                 ====================================

Gross profit

 Networking                        $    33,501           $   28,934
 Non-networking                              -                1,965
- ---------------------------------------------------------------------
 Total                             $    33,501           $   30,899
                                 ====================================


NOTE  4.   Comprehensive Income (Loss)

The components of comprehensive income (loss), net of tax, are as follows:



                                                      Three Months Ended
                                               --------------------------------
                                                   Mar 30,           Mar 31,
(in thousands)                                       2003              2002
- -------------------------------------------------------------------------------

Net loss                                         $ (11,515)        $ (13,680)
Other comprehensive income (loss):
Change in net unrealized gains on investments       (1,258)          (13,615)

- -------------------------------------------------------------------------------
Total                                            $ (12,773)        $ (27,295)
                                               ================================



NOTE 5.   Net Income (Loss) Per Share

The following  table sets forth the  computation of basic and diluted net income
loss per share:



                                                      Three Months Ended
                                               ---------------------------------
                                                  Mar 30,             Mar 31,
(in thousands, except per share amounts)           2003                2002
- --------------------------------------------------------------------------------

Numerator:
  Net loss                                        $ (11,515)       $ (13,680)
                                               =================================

Denominator:
  Basic and diluted weighted average
  common shares outstanding (1)                     171,402          169,513
                                               =================================

Basic and diluted net loss per share              $   (0.07)       $  (0.08)
                                               =================================



The Company had  approximately 2 million  options  outstanding at March 30, 2003
and 8 million  options  outstanding  at March 31, 2002 that were not included in
diluted net loss per share because they would be anti-dilutive.


                                       11



(1)  PMC-Sierra,  Ltd.  special shares are included in the  calculation of basic
     weighted average common shares outstanding.


NOTE 6.   Voluntary Stock Option Exchange Offer

In August  2002,  the  Company  offered  to  eligible  stock  option  holders an
opportunity to voluntarily  exchange certain stock options outstanding under the
Company's  equity-based  incentive plans.  Under the program,  participants were
able to tender for cancellation  stock options granted within a specified period
with exercise prices at or above $8.00 per share, in exchange for new options to
be  granted  at least  six  months  and one day after  the  cancellation  of the
tendered  options.  Pursuant  to the  terms  and  conditions  set  forth  in the
Company's offer, each eligible  participant  received new options to purchase an
equivalent  number of PMC shares for each tendered option with an exercise price
of less than $60.00.  For each tendered  option with an exercise price of $60.00
or more, each eligible participant received a new option to purchase a number of
PMC shares equal to one share for each four  unexercised  shares  subject to the
tendered option.

On September 26, 2002, the Company cancelled  options to purchase  approximately
19.3 million  shares of common stock with a weighted  average  exercise price of
$35.98.  In  exchange  for these  stock  options  and  pursuant to the terms and
conditions  set forth in the Company's  offer,  the Company  granted  options to
purchase  approximately  16.6  million  shares of common stock on March 31, 2003
with an exercise  price of $5.95,  which was the closing  price of the Company's
stock on the grant date.


                                       12




Item 2.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
          FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This Quarterly Report contains forward-looking statements that involve risks and
uncertainties.  We  use  words  such  as  "anticipates",   "believes",  "plans",
"expects",   "future",   "intends",   "may",  "will",   "should",   "estimates",
"predicts",  "potential",  "continue",  "becoming",  "transitioning" and similar
expressions to identify such forward-looking statements.

These  forward-looking  statements  apply only as of the date of this  Quarterly
Report.   We  undertake  no  obligation   to  publicly   update  or  revise  any
forward-looking  statements,  whether  as a result  of new  information,  future
events or  otherwise.  Our actual  results  could differ  materially  from those
anticipated in these forward-looking  statements for many reasons, including the
risks we face as  described  under  "Factors  That You  Should  Consider  Before
Investing in PMC-Sierra" and elsewhere in this Quarterly  Report.  Investors are
cautioned not to place undue reliance on these forward-looking statements, which
reflect  management's  analysis only as of the date hereof. Such forward-looking
statements  include  statements  as to,  among  others,  our  business  outlook,
revenues,  capital resources  sufficiency,  capital expenditures,  restructuring
activities, and expenses.


Results of Operations

First Quarters of 2003 and 2002


Net Revenues ($000,000)
                                         First Quarter
                                  --------------------------
                                       2003          2002      Change

Networking products                  $ 55.4        $ 46.8        18%
Non-networking products                   -           4.6     ( 100%)
                                  --------------------------
Total net revenues                   $ 55.4        $ 51.4         8%
                                  ==========================


Net revenues for the first quarter of 2003 were $55.4 million  compared to $51.4
million  for the first  quarter  of 2002.  Networking  revenues  increased  $8.6
million while non-networking  revenues declined $4.6 million. Our non-networking
product was discontinued in 2002 and this decline in revenue was consistent with
our previously announced business plans.

Our networking  revenues  increased 18% over the same period a year ago.  Higher
unit sales positively impacted revenues by increasing sales $12.1 million, while
reductions  in  average  selling  price   partially   offset  this  increase  by
approximately $3.5 million.


                                       13



Gross Profit ($000,000)
                                                First Quarter
                                         ----------------------------
                                             2003            2002        Change

Networking products                         $  33.5       $  28.9          16%
Non-networking products                           -           2.0       ( 100%)
                                         ----------------------------
Total gross profit                          $  33.5       $  30.9           8%
                                         ============================
   Percentage of net revenues                   60%           60%



Total gross profit  increased $2.6 million,  or 8%, in the first quarter of 2003
compared to the same quarter a year ago.

Networking  gross profit for the first quarter of 2003 increased by $4.6 million
from the first quarter of 2002  primarily due to an increase in networking  unit
sales.

Networking  gross profit as a percentage of networking  revenues  decreased 1.3%
from 61.8% in the first  quarter of 2002 to 60.5% in the first  quarter of 2003.
This decrease resulted primarily from:

   o generating  a greater  portion  of our sales from  higher  volume but lower
     margin  applications,  lowering  networking gross profit by approximately 7
     percentage points ;

   o reductions  in our direct  manufacturing  costs  increased  gross profit by
     approximately  6 percentage  points;

   o reductions   in  our  average   selling   price  reduced  gross  profit  by
     approximately 2 percentage points; and

   o fixed manufacturing costs were allocated over a higher volume of shipments,
     which improved gross profit by approximately 2 percentage points.


Non-networking  gross profit for the first quarter of 2003 declined to zero from
$2.0 million in the first quarter of 2002, as we did not sell any non-networking
products during the quarter.


Operating Expenses and Charges ($000,000)
                                                    First Quarter
                                              -------------------------
                                                  2003           2002     Change

Research and development                        $  30.9        $ 36.2     ( 15%)
Percentage of net revenues                          56%           70%

Marketing, general and administrative           $  12.6        $ 17.1     ( 26%)
Percentage of net revenues                          23%           33%

Amortization of deferred stock compensation:
 Research and development                       $   0.4        $  0.9
 Marketing, general and administrative              0.0           0.1
                                              -------------------------
                                                $   0.4        $  1.0
                                              -------------------------
Percentage of net revenues                           1%            2%

Restructuring costs                             $   6.6        $   -



                                       14



         Research and Development and Marketing, General and
         Administrative Expenses:

Our research and development,  or R&D,  expenses  decreased by $5.3 million,  or
15%, in the first quarter of 2003 compared to the same quarter a year ago due to
the restructuring  program  implemented in the first quarter of 2003 and ongoing
cost  reduction  initiatives.  As a result,  we reduced  our R&D  personnel  and
related costs by $1.1 million and other R&D expenses by $4.2 million compared to
the first quarter of 2002.

Our marketing,  general and administrative,  or MG&A, expenses decreased by $4.5
million,  or 26%, in the first  quarter of 2003  compared to the same  quarter a
year ago. As a result of the  restructuring  and cost  reduction  programs since
2001, we reduced our MG&A  personnel and related costs by $2.1 million and other
MG&A expenses by $2.4 million compared to the first of 2002.


         Amortization of Deferred Stock Compensation:

We recorded a non-cash charge of $0.4 million for amortization of deferred stock
compensation  in the first quarter of 2003 compared to a $1.0 million  charge in
the  first  quarter  of 2002.  Deferred  stock  compensation  charges  decreased
compared to the same quarter last year due to the  accelerated  amortization  of
deferred stock compensation,  which results in a declining  amortization expense
over the amortization period.


         Restructuring

On  January  16,  2003,  we  implemented  a  corporate  restructuring  to reduce
operating  expenses.  The  restructuring  plan included the  termination  of 175
employees  and the  closure of four  product  development  centers in  Maryland,
Ireland  and  India.  We  expect  to incur  total  costs of  $12-14  million  in
connection  with this plan and  recorded a $6.6  million  charge  for  workforce
reduction and facility lease cost in the first quarter. We made cash payments of
$2.2 million in the first quarter,  in connection  with this  restructuring.  We
will record further  restructuring  charges in connection  with this plan in the
second and third quarters of 2003 as we incur such liabilities.

During the first  quarter,  we paid out $6.6 million in connection  with October
2001 restructuring  activities.  See "Critical Accounting Estimates". We did not
have any changes in estimates relating to our 2001 restructuring activities that
affected the Statements of Operations.


Interest and other income, net

Net interest and other income  decreased to $0.5 million in the first quarter of
2003 from $1.4 million in the first quarter of 2002.  Interest income  decreased
as we earned lower investment yields on lower average cash balances.


Gain on investments

During the first  quarter of 2003,  we realized a pre-tax gain of  approximately
$0.5 million as a result of our  disposition  of a portion of our public company
investments.


Provision for income taxes

                                       15


We recorded a tax recovery of $4.5 million in the first quarter of 2003 relating
to losses and tax credits  generated in Canada,  which will result in a recovery
of taxes paid in prior periods.  We have provided a valuation allowance on other
deferred tax assets  generated in the quarter  because of uncertainty  regarding
their realization.


Critical Accounting Estimates


         General

Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations is based upon our Consolidated Financial Statements,  which have been
prepared in accordance  with  accounting  principles  generally  accepted in the
United States. The preparation of these financial statements requires us to make
estimates and assumptions that affect our reported assets, liabilities,  revenue
and expenses,  and related  disclosure of our contingent assets and liabilities.
Our significant  accounting  policies are outlined in Note 1 to the Consolidated
Financial  Statements  in our Annual  Report on form 10-K for the  period  ended
December  29,  2002,  which  also  provides  commentary  on  our  most  critical
accounting  estimates.  The  following  estimates  were of note during the first
quarter of 2003.


         Restructuring charges  - Facilities

In calculating the cost to dispose of our excess facilities,  we had to estimate
for each  location  the  amount to be paid in lease  termination  payments,  the
future lease and operating  costs to be paid until the lease is terminated,  and
the amount,  if any,  of sublease  revenues.  This  required us to estimate  the
timing and costs of each lease to be terminated,  the amount of operating  costs
for the affected  facilities,  and the timing and rate at which we might be able
to sublease or complete  negotiations of a lease termination  agreement for each
site.  To form our  estimates  for these costs we performed an assessment of the
affected facilities and considered the current market conditions for each site.

During 2001, we recorded total charges of $155 million for the  restructuring of
excess facilities as part of restructuring plans, which was approximately 53% of
the estimated total future  operating cost and lease obligation for those sites.
As at March 30, 2003 the remaining  restructuring  accrual for facilities is 50%
of the estimated  total future  operating  costs and lease  obligations  for the
remaining  sites,  which we  believe  remains  sufficient  to cover  anticipated
settlement  costs.  However,  our  assumptions  on either the lease  termination
payments,  operating  costs  until  terminated,  or the  amounts  and  timing of
offsetting  sublease  revenues may turn out to be incorrect  and our actual cost
may be materially different from our estimates.

In the first  quarter  of 2003,  we  announced  a further  restructuring  of our
operations,  which will result in the closing of four of our product development
sites.  We recorded in the first  quarter our  estimate of the costs  associated
with closing one of these sites.  We will record a charge for the closing of the
other three sites when we cease use of the sites.  Our current estimate of costs
for the  closing  of all four  sites is from $4  million  to $5  million,  which
represents just over 50% of the estimated total future operating costs and lease
obligations for the effected sites.


Business Outlook

                                       16


Forecasting  our  revenue  outlook  in the  current  slow  economic  climate  is
difficult.  Currently many of our customers wait until the last possible  moment
before  ordering  products,  and then limit their order to an amount that is the
minimum required to produce  equipment to meet specified  customer  demand.  Our
quarterly  revenues may continue to vary considerably as our customers adjust to
fluctuating demand for products in their markets.

We anticipate that our revenues will increase in the second quarter to $58 - $60
million, or an increase of 5% to 8% from the first quarter of 2003. Our estimate
regarding second quarter revenues is based on orders already shipped at the date
of this report,  order backlog  scheduled to be shipped  during the remainder of
the quarter,  and an estimate of new orders we expect to receive and ship before
the end of the  quarter.  We  believe  that our  forecasted  increase  in second
quarter revenues will primarily be the result of depletion of excess inventories
of our  products  at some of our  customers  and  slightly  improved  demand for
products that are sold for customer application in digital subscriber line (DSL)
markets.

We expect  aggregate  spending on research and development  (R&D) and marketing,
general and  administrative  (MG&A) expenses to increase  slightly in the second
quarter as we expect higher new product development costs as an increased number
of newly developed products are completed.  As new products are completed,  they
are  sent to third  parties  for  creation  of mask  sets,  and  manufacture  of
prototype and engineering parts for testing. These costs are variable in nature,
depend upon the timing of actual  completion of product  designs and are charged
to development expense as incurred. We expect to reduce R&D and MG&A spending in
the third quarter of 2003  relative to the second  quarter of 2003 as we realize
the full effect of the restructuring program we implemented on January 16, 2003.

As a result of the  restructuring  program we  implemented  in January  2003, we
expect to record  total  restructuring  charges  of $12-14  million  related  to
workforce  reduction,  facility lease costs and related asset  impairments.  PMC
recorded  $6.6  million in such  charges in the first  quarter  and we expect to
record  additional  charges totaling $6 to $8 million over the next two quarters
as we carry out this restructuring program.

We incur a  significant  portion of  operating  costs,  primarily  salaries  and
facilities  costs,  in  Canadian  dollars  and  will  continue  to do so in  the
foreseeable future while substantially all of our revenues are denominated in US
dollars. In the first quarter of 2003, such costs represented  approximately 30%
of our  operating  expenses.  We fund  our  Canadian  operations  by  purchasing
Canadian dollars, and funded the first quarter operating expenses at an exchange
rate  $0.656  US per  Canadian  dollar.  Given  that the US  dollar  has and may
continue to decline in value  compared to the Canadian  dollar,  the cost of our
Canadian  operations  expressed  in US dollars  may  continue to increase in the
future.  As of the filing of this  report the  exchange  rate was $ 0.719 US per
Canadian  dollar,  which will  increase  our  operating  costs going  forward if
management is not able to otherwise  identify and  implement  other cost savings
opportunities.

We expect no net interest  income as the yields we earn on our cash,  short-term
investments  and long-term  investments  in bonds and notes continue to decline,
while the interest rate associated with our  convertible  subordinate  debt, the
largest component of interest expense, is fixed at 3.75%.


Liquidity & Capital Resources

Our principal  source of liquidity at March 30, 2003 was $552.7  million in cash
and  investments,  which included $406.4 million in cash,  cash  equivalents and
short-term  investments and $146.3 million of long-term investments in bonds and
notes, which mature within 12 and 30 months.

In the first three months of 2003,  we used $15.9  million of cash for operating
activities and $1.3 million of cash for purchases of property and equipment.  We
generated  $4.3  million of cash through  financing  activities,  primarily  the
issuance of common stock under our equity-based compensation plans.

                                       17



We have cash commitments made up of the following:




As at March 30, 2003 (in thousands)
- ------------------------------------------------------------------------------------------------------------------------------------

                                                                                                                          After
Contractual Obligations                          Total          2003       2004       2005        2006        2007         2007
                                                                                                      
Operating Lease Obligations:
    Minimum Rental Payments                   $   265,985     $ 23,971   $ 31,528    $ 30,677    $ 29,872    $ 31,439    $ 118,498
    Estimated Operating Cost Payments              57,686        5,647      7,117       7,025       6,516       6,319       25,062
Long Term Debt:
    Principal Repayment                           275,000            -          -           -     275,000           -            -
    Interest Payments                              36,095        5,156     10,313      10,313      10,313           -            -
Purchase Obligations                                3,850        2,473      1,377           -           -           -            -
                                          ------------------------------------------------------------------------------------------
                                                  638,616     $ 37,247   $ 50,335    $ 48,015   $ 321,701    $ 37,758    $ 143,560
                                                           =========================================================================
Venture Investment Commitments (see below)         37,403
                                          -----------------
Total Contractual Cash Obligations            $   676,019
                                          =================




Approximately  $254.4  million of the  minimum  rental  payments  and  estimated
operating  costs  identified  in the table above relate to operating  leases for
vacant and excess office facilities. We are currently negotiating settlements of
these leases and may incur significant  related cash expenditures.  We expect to
expend  a  significant  portion  of the  $122.9  million  we  have  accrued  for
restructuring  costs  in  settlement  of  these  obligations  on  completion  of
negotiations  in the  coming  two  quarters.  See  Note  2 to  the  Consolidated
Financial  Statements for additional  information  regarding  restructuring  and
other costs.

Our long-term debt requires  semi-annual interest payments of approximately $5.2
million to holders of our convertible  notes. These interest payments are due on
February 15 and August 15 of each year,  with the last  payment of interest  and
$275 million in principal being due on August 15, 2006.

We  participate  in four  professionally  managed  venture  funds that invest in
early-stage private technology companies.  From time to time these funds request
additional  capital  for  private  placements.  We have  committed  to invest an
additional  $37.4  million into these funds,  which may be requested by the fund
managers at any time over the next seven years.

We have a line of credit with a bank that allows us to borrow up to $5.3 million
provided we maintain  eligible  investments  with the bank in an amount equal to
our drawings.  At March 30, 2003 we had  committed  all of this  facility  under
letters of credit as security for office leases.

We believe that  existing  sources of liquidity  will satisfy our  restructuring
obligations and our projected  operating,  working capital,  venture  investing,
debt interest,  capital expenditure and wafer deposit  requirements  through the
end of 2003. We expect to spend $7.6 million on new capital additions during the
remainder of 2003.


Recently issued accounting standards

In April 2003 the Financial  Accounting  Standards Board (FASB) issued Statement
No. 149 (SFAS No. 149), "Amendment of SFAS No. 133 on Derivative Instruments and
Hedging   Activities".   The  Statement  amends  and  clarifies  accounting  for
derivative  instruments,  including certain derivative  instruments  embedded in
other contracts,  and for hedging  activities under SFAS No. 133. In particular,
it (1)  clarifies  under  what  circumstances  a contract  with an  initial  net
investment  meets the  characteristic  of a derivative  as discussed in SFAS No.
133, (2) clarifies when a derivative contains a financing component,  (3) amends
the  definition of an underlying  (as defined  within SFAS 149) to conform it to
the language  used in FASB  Interpretation  No. 45,  "Guarantor  Accounting  and
Disclosure  Requirements  for  Guarantees,   Including  Indirect  Guarantees  of
Indebtedness of Others" and (4) amends certain other existing pronouncements.

                                       18


SFAS No. 149 is effective for contracts  entered into or modified after June 30,
2003, except as stated below and for hedging relationships designated after June
30, 2003.

The provisions of SFAS No. 149 that relate to SFAS No. 133 Implementation Issues
that have been  effective for fiscal  quarters that began prior to June 15, 2003
should  continue to be applied in  accordance  with their  respective  effective
dates. In addition, certain provisions relating to forward purchases or sales of
when-issued  securities  or other  securities  that do not yet  exist  should be
applied to existing  contracts as well as new contracts  entered into after June
30, 2003. SFAS No. 149 should be applied prospectively.

We will adopt the  provisions  of SFAS No. 149 for any  contracts  entered  into
after June 30,  2003.  PMC is not affected by  Implementation  Issues that would
require earlier  adoption.  We do not expect the adoption of this Statement will
have a material impact on our results of operations and financial position.

In January 2003, the FASB issued Interpretation No. 46 (FIN 46),  "Consolidation
of  Variable  Interest  Entities",  an  Interpretation  of ARB No.  51".  FIN 46
requires  certain variable  interest  entities to be consolidated by the primary
beneficiary of the entity if the equity  investors in the entity do not have the
characteristics  of a controlling  financial  interest or do not have sufficient
equity at risk for the  entity to  finance  its  activities  without  additional
subordinated  financial support from other parties.  FIN 46 is effective for all
new variable  interest  entities created or acquired after January 31, 2003. For
variable  interest  entities  created or acquired prior to February 1, 2003, the
provisions  of FIN 46 must be applied  for the first  interim  or annual  period
beginning  after June 15, 2003.  We are currently  evaluating  FIN 46 but do not
expect that the adoption of FIN 46 will have a material  effect on the Company's
results of operations, financial condition or disclosures.

In December 2002, the FASB issued Statement of Financial Accounting Standard No.
148 (SFAS 148),  "Accounting  for  Stock-Based  Compensation  -  Transition  and
Disclosure". SFAS 148 provides alternative methods of transition for a voluntary
change to the fair value based method of  accounting  for  stock-based  employee
compensation.  SFAS 148 also  requires  prominent  disclosure in the "Summary of
Significant Accounting Policies" of both annual and interim financial statements
about the method of accounting for  stock-based  employee  compensation  and the
effect of the method used on reported results. PMC adopted SFAS 148 for its 2002
fiscal  year end.  Adoption  of this  statement  affected  the  location  of our
disclosure within the Consolidated Financial Statements, but will not impact our
results of operation or  financial  position  unless we change to the fair value
method of accounting for stock-based employee compensation.

In  November  2002,  the  FASB  issued  FASB  Interpretation  No.  45 (FIN  45),
"Guarantor's  Accounting and Disclosure  Requirements for Guarantees,  Including
Indirect  Guarantees  of  Indebtedness  of Others".  FIN 45  requires  that upon
issuance of a guarantee,  a guarantor  must  recognize a liability  for the fair
value  of an  obligation  assumed  under  a  guarantee.  FIN  45  also  requires
additional  disclosures  by a  guarantor  in its  interim  and annual  financial
statements  about  the  obligations   associated  with  guarantees  issued.  The
recognition  provisions  of FIN 45 are  effective  for any  guarantees  that are
issued or modified after December 31, 2002. We adopted the  requirements  of FIN
45,  which  did not had a  material  impact  on our  results  of  operations  or
financial position.

In June 2002, the FASB issued Statement of Financial Accounting Standard No. 146
(SFAS 146),  "Accounting for Costs Associated with Exit or Disposal Activities".
SFAS 146  requires  that the  liability  for a cost  associated  with an exit or
disposal  activity  be  recognized  at its  fair  value  when the  liability  is
incurred.  Under  previous  guidance,  a liability  for  certain  exit costs was
recognized  at the date that  management  committed to an exit plan.  In January
2003, we announced a further  restructuring  plan,  the costs of which have been
accounted for in accordance with SFAS 146.

                                       19



FACTORS THAT YOU SHOULD CONSIDER BEFORE INVESTING IN PMC-SIERRA

Our  company is  subject  to a number of risks - some are normal to the  fabless
networking  semiconductor  industry,  some  are the  same or  similar  to  those
disclosed in previous SEC  filings,  and some may be present in the future.  You
should carefully  consider all of these risks and the other  information in this
report  before  investing in PMC. The fact that certain risks are endemic to the
industry does not lessen the significance of the risk.

As a result of these  risks,  our  business,  financial  condition  or operating
results could be  materially  adversely  affected.  This could cause the trading
price  of our  securities  to  decline,  and  you may  lose  part or all of your
investment.

We are  subject  to rapid  changes in demand for our  products  due to  customer
inventory levels,  production  schedules,  fluctuations in demand for networking
equipment and our customer concentration.

As a result of these factors,  we have very limited  revenue  visibility and the
rate by which revenues are booked and shipped  within the same reporting  period
is typically  volatile.  In  addition,  our net bookings can vary sharply up and
down within a quarter.

         Our  revenues  may  decline as our  customers  face  unpredictable  and
         volatile demand for their products.

Our customers have reported that demand for their products  remains weak and may
fluctuate  from current levels  depending on their  customers'  specific  needs.
Several of our  customers'  clients have  lowered  their  forecasts  for capital
expenditures as they carefully manage cash usage and expense levels,  purchasing
equipment which may generate a financial  return on a shorter time horizon.  The
equipment to which they shift may not incorporate,  or may incorporate fewer, of
our products.

In  response to the actual and  anticipated  declines  in  networking  equipment
demand,  many of our customers and their contract  manufacturers have undertaken
initiatives  to   significantly   reduce   expenditures   and  excess  component
inventories.  Many  platforms  in which  our  products  are  designed  have been
cancelled as our customers cancel or restructure product development initiatives
or as  venture-financed  startup  companies fail. Our revenues may be materially
and  adversely  impacted  in future  quarters  if these  conditions  continue or
worsen.

Our customers' actions have reduced our visibility of future revenue streams. As
most of our costs are fixed in the short term, a further reduction in demand for
our products may cause a further decline in our gross and net margins.

While we  believe  that our  customers  and  their  contract  manufacturers  are
consuming a portion of their  inventory of PMC  products,  we believe that those
inventories,  as well as the weakened demand that our customers are experiencing
for their  products,  may continue to depress our revenues and profit margins in
future quarters (see "Business  Outlook" above).  We cannot  accurately  predict
when demand for our products will  strengthen or how quickly our customers  will
consume their inventories of our products.

                                       20


         We may fail to meet our demand  forecasts  if our  customers  cancel or
         delay the purchase of our products.

Many  of  our  customers  have  numerous  product  lines,   numerous   component
requirements  for each product,  sizeable and complex supplier  structures,  and
often engage contract manufacturers for additional  manufacturing capacity. This
makes  forecasting  their production  requirements  difficult and can lead to an
inventory surplus of certain of their components.

Our  customers  often shift  buying  patterns as they manage  inventory  levels,
decide to use competing  products,  are acquired or divested,  market  different
products,  or  change  production  schedules.   Customers  are  more  frequently
requesting  shipment of our products at less than our normal lead times.  We may
be unable  to  deliver  products  to  customers  when  they  require  them if we
incorrectly  estimate future demand, and this may lead to higher fluctuations in
shipments of our products.

In addition,  we believe that  uncertainty in our customers' end markets and our
customers'  increased focus on cash management has caused our customers to delay
product orders and reduce delivery lead-time  expectations.  We expect this will
increase  the  proportion  of our  revenues in future  periods that will be from
orders  placed and  fulfilled  within the same  period.  This will  decrease our
ability to accurately forecast and may lead to greater fluctuations in operating
results.

         We rely on a few customers for a major portion of our sales, any one of
         which could  materially  impact our  revenues  should they change their
         ordering pattern.

We depend on a limited  number of customers for a major portion of our revenues.
Through  direct,  distributor  and  subcontractor  purchases,  Cisco Systems and
Hewlett  Packard  each  accounted  for more than 10% of our first  quarter  2003
revenues.  Both of these  customers  have announced  expected  declines in their
future  revenues for some of their  products that could reduce the quantities of
our products that they will buy.

We do not have  long-term  volume  purchase  commitments  from any of our  major
customers.  Accordingly, our future operating results will continue to depend on
the success of our largest customers and on our ability to sell existing and new
products  to  these  customers  in  significant  quantities.  The  loss of a key
customer,  or a reduction in our sales to any key  customer or our  inability to
attract new  significant  customers  could  materially and adversely  affect our
business, financial condition or results of operations.

         If  demand  for  our  products  declines,  we  may  have  to add to our
         inventory  reserve,  which  would  lead  to a  further  decline  in our
         operating profits.

We have a reserve  against excess  inventory  based on our revenue  expectations
through the next four quarters.  If future demand for our products does not meet
our expectations, we may need to take an additional write-down of inventory.

We  anticipate  lower  margins on high volume  products,  which could  adversely
affect our profitability.

We expect the average  selling prices of our products to decline as they mature.
Historically,  competition  in the  semiconductor  industry  has driven down the
average  selling  prices of products.  If we price our  products  too high,  our
customers may use a competitor's  product or an in-house  solution.  To maintain
profit  margins,  we must reduce our costs  sufficiently  to offset  declines in
average selling prices, or successfully sell  proportionately  more new products
with higher average  selling  prices.  Yield or other  production  problems,  or
shortages  of supply  may  preclude  us from  lowering  or  maintaining  current
operating costs.

                                       21


OEMs are  becoming  more  price  conscious  than in the past as a result  of the
industry  downturn,  and as  semiconductors  sourced from third party  suppliers
comprise a greater portion of the total materials cost in OEM equipment. We have
also experienced more aggressive price competition from competitors that wish to
enter into the market segments in which we participate.  These circumstances may
make some of our products less  competitive and we may be forced to decrease our
prices  significantly to win a design.  We may lose design  opportunities or may
experience  overall  declines in gross  margins as a result of  increased  price
competition.

In addition,  our networking  products range widely in terms of the margins they
generate.  A change in  product  sales mix could  impact our  operating  results
materially.

Design wins do not translate into near-term  revenues and the timing of revenues
from newly designed products is often uncertain.

We have  announced a number of new products and design wins for existing and new
products.  While some  industry  analysts  may use  design  wins as a metric for
future revenues, many design wins do not generate revenues, as customer projects
are cancelled or are not adopted by their end  customers.  In the event a design
win generates  revenue,  the amount of revenue will vary greatly from one design
win to another. Most revenue-generating  design wins take greater than two years
to generate meaningful revenue.

Our revenue expectations may include growing sales of newer semiconductors based
on early adoption of those products by customers.  These  expectations would not
be achieved if early sales of new system level  products by our customers do not
increase  over time.  We may  experience  this more with  design wins from early
stage  companies,  who tend to focus on  leading-edge  technologies  that may be
adopted less rapidly in the current  environment by  telecommunications  service
providers.

Our  restructurings  have  curtailed our  resources and may have  insufficiently
addressed market conditions.

On January 16th,  2003,  we  implemented  plans to  restructure  our  operations
through a workforce  reduction of 175  employees and the shutdown of four of our
product  development  sites.  We recorded a charge of $6.6  million in the first
quarter  of 2003,  and  estimate  that we will  record a  further  cost for this
restructuring  plan of $6 to $8 million  over the second and third  quarters  of
2003.

We reduced the work force and  consolidated  or closed  excess  facilities in an
effort to bring our expenses  into line with our reduced  revenue  expectations.
However,  if our  revenues do not  increase,  we expect to continue to incur net
losses.

While management uses all available  information to estimate these restructuring
costs,  particularly facilities costs, our estimates may prove to be inadequate.
If our actual sublease revenues or exiting negotiations differ from our original
assumptions,  we may have to record additional  charges,  which could materially
affect our results of operations, financial position and cash flow.

                                       22


Restructuring plans require significant  management  resources to execute and we
may fail to achieve our targeted goals and our expected  annualized  savings. We
may have incorrectly  anticipated the demand for our products,  we may be forced
to  restructure  further  or may incur  further  operating  charges  due to poor
business  conditions  and some of our  product  development  initiatives  may be
delayed due to the reduction in our development resources.

Our revenues may decline if our customers use our competitors'  products instead
of ours, suffer further  reductions in demand for their products or are acquired
or sold.

We are experiencing significantly greater competition from many different market
participants as the market in which we participate matures. In addition,  we are
expanding  into  markets,  such  as  the  wireless  infrastructure  and  generic
microprocessor  markets,  which have  established  incumbents  with  substantial
financial and technological  resources.  We expect fiercer competition than that
which we have traditionally  faced as some of these incumbents derive a majority
of their earnings from these markets.

All of our competitors pose the following threats to us:

         As our customers  design next  generation  systems and select the chips
         for those new systems,  our competitors have an opportunity to convince
         our  customers to use their  products,  which may cause our revenues to
         decline.

We typically face  competition  at the design stage,  where  customers  evaluate
alternative design approaches requiring integrated circuits. Our competitors may
have more  opportunities  to supplant  our products in next  generation  systems
because  of the  shortening  product  life and  design-in  cycles in many of our
customers' products.

In addition, as a result of the industry downturn, and as semiconductors sourced
from third party  suppliers  comprise a greater  portion of the total  materials
cost in OEM equipment,  OEMs are becoming more price conscious than in the past.
We have also experienced  increased price  aggressiveness  from some competitors
that wish to enter  into the  market  segments  in which we  participate.  These
circumstances may make some of our products  price-uncompetitive  or force us to
match low prices.  We may lose design  opportunities  or may experience  overall
declines in gross margins as a result of increased price competition.

We are facing additional competition from companies who have excess capacity and
who are  able to offer  our OEM  customers  similar  products  to  ours.  Excess
capacity,  in tandem with the significant  decrease in demand for OEM equipment,
has created downward pricing pressure on our products.

The markets for our  products  are  intensely  competitive  and subject to rapid
technological  advancement  in design  tools,  wafer  manufacturing  techniques,
process  tools  and  alternate  networking  technologies.  We may not be able to
develop new products at competitive  pricing and performance  levels. Even if we
are able to do so, we may not complete a new product and  introduce it to market
in a timely  manner.  Our customers may  substitute use of our products in their
next generation equipment with those of current or future competitors.

         Increasing  competition  in our industry will make it more difficult to
         achieve design wins.

We face  significant  competition  from three major  fronts.  First,  we compete
against  established  peer-group  semiconductor  companies  that  focus  on  the
communications  semiconductor  business.  These companies include Agere Systems,
Applied  Micro  Circuits  Corporation,   Broadcom,  Exar  Corporation,  Conexant
Systems,  Marvell Technology Group,  Multilink Technology  Corporation,  Silicon
Image, Transwitch and Vitesse Semiconductor.  These companies are well financed,
have  significant   communications   semiconductor   technology   assets,   have
established  sales  channels,  and are  dependent  on the  market  in  which  we
participate for the bulk of their revenues.

                                       23


Other  competitors  include  major  domestic  and  international   semiconductor
companies,  such  as  Agilent,  Cypress  Semiconductor,  Intel,  IBM,  Infineon,
Integrated  Device  Technology,  Maxim  Integrated  Products,  Motorola,  Nortel
Networks, and Texas Instruments. These companies are concentrating an increasing
amount of their  substantial  financial  and other  resources  on the markets in
which we participate. This represents a serious competitive threat to us.

Emerging  venture-backed  companies also provide significant  competition in our
segment of the semiconductor  market.  These companies tend to focus on specific
portions  of our broad  range of  products  and in the  aggregate,  represent  a
significant  threat to our product lines.  In addition,  these  companies  could
introduce  disruptive  technologies  that may make our technologies and products
obsolete.

Over the next few years,  we expect  additional  competitors,  some of which may
also have greater  financial and other  resources,  to enter the market with new
products. These companies,  individually or collectively, could represent future
competition for many design wins, and subsequent product sales.

         We must often redesign our products to meet evolving industry standards
         and customer specifications,  which may prevent or delay future revenue
         growth.

We sell products to a market whose  characteristics  include  evolving  industry
standards, product obsolescence,  and new manufacturing and design technologies.
Many of the  standards  and  protocols  for our products are based on high-speed
networking  technologies that have not been widely adopted or ratified by one or
more of the standard-setting  bodies in our customers'  industry.  Our customers
often delay or alter their design demands during this standard-setting  process.
In  response,  we must  redesign our  products to suit these  changing  demands.
Redesign usually delays the production of our products.  Our products may become
obsolete during these delays.

         Since many of the  products  we  develop  do not reach full  production
         sales  volumes  for a number of years,  we may  incorrectly  anticipate
         market  demand and develop  products  that achieve  little or no market
         acceptance.

Our   products   generally   take   between  18  and  24  months  from   initial
conceptualization  to  development  of a viable  prototype,  and another 6 to 18
months to be designed into our  customers'  equipment and into  production.  Our
products often must be redesigned because manufacturing yields on prototypes are
unacceptable  or customers  redefine  their  products to meet changing  industry
standards or customer  specifications.  As a result,  we develop  products  many
years before volume  production and may  inaccurately  anticipate our customers'
needs.

Our strategy includes  broadening our business into the Enterprise,  Storage and
Consumer  markets.  We may not be successful in achieving  significant  sales in
these new markets.

The Enterprise,  Storage and Consumer  markets are already serviced by incumbent
suppliers  who  have  established   relationships  with  customers.  We  may  be
unsuccessful in displacing these suppliers, or having our products designed into
products for different market needs. In order to compete against incumbents,  we
may need to lower our prices to win new  business,  which  could lower our gross
margin. We may incur increased research,  development and sales costs to address
these new markets.

                                       24


If  foreign  exchange  rates  fluctuate  significantly,  our  profitability  may
decline.

We are exposed to foreign currency rate fluctuations  because a significant part
of our development,  test, marketing and administrative costs are denominated in
Canadian  dollars,  and our  selling  costs  are  denominated  in a  variety  of
currencies  around the  world.  The US dollar  has and may  continue  to devalue
compared to the Canadian  dollar.  While we have adopted a foreign currency risk
management  policy,  which is  intended  to reduce  the  effects  of  short-term
fluctuations,  our policy may not be effective and it does not address long-term
fluctuations.

In  addition,  while  all  of our  sales  are  denominated  in US  dollars,  our
customers'  products  are sold  worldwide.  Any  further  decline  in the  world
networking  markets could seriously  depress our customers' order levels for our
products.  This effect could be exacerbated if fluctuations in currency exchange
rates decrease the demand for our customers' products.


         We are subject to the risks of conducting  business  outside the United
         States to a greater extent than companies that operate their businesses
         mostly in the United States, which may impair our sales, development or
         manufacturing of our products.

We are subject to the risks of conducting  business outside the United States to
a greater  extent  than most  companies  because,  in  addition  to selling  our
products in a number of  countries,  a  significant  portion of our research and
development and manufacturing is conducted outside the United States.

The geographic  diversity of our business operations could hinder our ability to
coordinate design and sales activities.  If we are unable to develop systems and
communication  processes  to support  our  geographic  diversity,  we may suffer
product development delays or strained customer relationships.

         We may lose our  ability  to design or  produce  products,  could  face
         additional  unforeseen  costs or could lose access to key  customers if
         any of the nations in which we conduct  business  impose trade barriers
         or new communications standards.

We may have difficulty obtaining export licenses for certain technology produced
for us outside  the  United  States.  If a foreign  country  imposes  new taxes,
tariffs,  quotas, and other trade barriers and restrictions or the United States
and a  foreign  country  develop  hostilities  or  change  diplomatic  and trade
relationships,  we may not be able to continue  manufacturing or sub-assembly of
our  products in that country and may have fewer sales in that  country.  We may
also have fewer sales in a country that imposes new communications  standards or
technologies.  This could inhibit our ability to meet our customers'  demand for
our products and lower our revenues.


We are  exposed  to the  credit  risk of some of our  customers  and we may have
difficulty collecting receivables from customers based in foreign countries.

Many of our customers  employ contract  manufacturers  to produce their products
and manage their  inventories.  Many of these contract  manufacturers  represent
greater credit risk than our networking  equipment  customers,  who generally do
not guarantee our credit receivables related to their contract manufacturers.

                                       25


In addition,  international debt rating agencies have  significantly  downgraded
the bond ratings on a number of our larger  customers,  which had  traditionally
been considered financially stable. Should these companies enter into bankruptcy
proceedings or breach their debt covenants, our significant accounts receivables
with these companies could be jeopardized.

The complexity of our products could result in unforeseen delays or expenses and
in  undetected  defects  or  bugs,  which  could  adversely  affect  the  market
acceptance of new products and damage our reputation with current or prospective
customers.

Although we, and our customers and our suppliers  rigorously  test our products,
our highly complex  products  regularly  contain defects or bugs. We have in the
past experienced,  and may in the future experience,  these defects and bugs. If
any of our products  contain  defects or bugs, or have  reliability,  quality or
compatibility problems that are significant to our customers, our reputation may
be damaged  and  customers  may be  reluctant  to buy our  products.  This could
materially  and  adversely  affect our ability to retain  existing  customers or
attract new  customers.  In addition,  these defects or bugs could  interrupt or
delay sales to our customers.

We may have to invest  significant  capital  and other  resources  to  alleviate
problems with our products.  If any of these  problems are not found until after
we have commenced commercial  production of a new product, we may be required to
incur  additional  development  costs and product recall,  repair or replacement
costs.  These  problems may also result in claims against us by our customers or
others. In addition, these problems may divert our technical and other resources
from other development efforts.  Moreover, we would likely lose, or experience a
delay in, market  acceptance of the affected  product or products,  and we could
lose credibility with our current and prospective customers.


We may be  unsuccessful in  transitioning  the design of our new products to new
manufacturing processes.

Many of our new  products are  designed to take  advantage of new  manufacturing
processes offering smaller manufacturing geometries as they become available, as
the smaller geometry  products can provide a product with improved features such
as lower power requirements,  more functionality and lower cost. We believe that
the  transition  of our  products to smaller  geometries  is critical  for us to
remain  competitive.  We could  experience  difficulties  in migrating to future
geometries or  manufacturing  processes,  which would result in the delay of the
production  of our  products.  Our  products  may become  obsolete  during these
delays, or allow  competitors' parts to be chosen by customers during the design
process.


Our  business   strategy   contemplates   acquisition  of  other   companies  or
technologies, which could adversely affect our operating performance.

Acquiring products, technologies or businesses from third parties is part of our
business  strategy.  Management may be diverted from our  operations  while they
identify and negotiate these  acquisitions and integrate an acquired entity into
our operations. Also, we may be forced to develop expertise outside our existing
businesses, and replace key personnel who leave due to an acquisition.

                                       26


An acquisition could absorb  substantial cash resources,  require us to incur or
assume debt obligations, or issue additional equity. If we issue more equity, we
may  dilute  our common  stock  with  securities  that have an equal or a senior
interest.

Acquired entities also may have unknown liabilities, and the combined entity may
not achieve the results that were anticipated at the time of the acquisition.

The timing of revenues from newly designed  products is often uncertain.  In the
past,  we have had to  redesign  products  that we acquired  when  buying  other
businesses, resulting in increased expenses and delayed revenues. This may occur
in the future as we commercialize the new products resulting from acquisitions.

We participate in funds that invest in early-stage private technology  companies
to gain  access to  emerging  technologies.  These  companies  possess  unproven
technologies  and our  investments  may or may not yield  positive  returns.  We
currently have commitments to invest $37.4 million in such funds. In addition to
consuming  significant  amounts of cash, these investments are risky because the
technologies    that   these    companies   are   developing   may   not   reach
commercialization.  We may record an impairment  charge to our operating results
should we determine  that these funds have incurred a  non-temporary  decline in
value.


The loss of personnel could preclude us from designing new products.

To succeed,  we must retain and hire technical  personnel  highly skilled at the
design and test functions needed to develop high-speed  networking  products and
related software. We do not have employment agreements in place with many of our
key  personnel.  As employee  incentives,  we issue  common  stock  options that
generally have exercise prices at the market value at the time of grant and that
are subject to vesting. The stock options we grant to employees are effective as
retention incentives only if they have economic value.

Our recent restructurings have significantly reduced the number of our technical
employees. We may experience customer  dissatisfaction as a result of delayed or
cancelled product development initiatives.


We may not be  able  to meet  customer  demand  for  our  products  if we do not
accurately  predict demand or if we fail to secure adequate wafer fabrication or
assembly capacity.

We currently  do not have the ability to  accurately  predict what  products our
customers will need in the future.  Anticipating demand is difficult because our
customers  face  volatile  pricing  and  demand  for their  end-user  networking
equipment,  our  customers are focusing  more on cash  preservation  and tighter
inventory  management,  and  because we supply a large  number of  products to a
variety of customers and contract manufacturers who have many equipment programs
for which they purchase our products.  Our customers are  frequently  requesting
shipment  of our  products  earlier  than our normal  lead  times.  If we do not
accurately  predict what mix of products our customers may order,  we may not be
able to meet our  customers'  demand  in a timely  manner or we may be left with
unwanted inventory.

A shortage in supply  could  adversely  impact our  ability to satisfy  customer
demand,  which could adversely affect our customer  relationships along with our
current and future operating results.

                                       27


         We rely on  limited  sources  of wafer  fabrication,  the loss of which
         could delay and limit our product shipments.

We do not own or operate a wafer fabrication  facility.  Three outside foundries
in Asia supply greater than 90% of our semiconductor  device  requirements.  Our
foundry  suppliers also produce products for themselves and other companies.  In
addition,  we may not have  access  to  adequate  capacity  or  certain  process
technologies. We have less control over delivery schedules, manufacturing yields
and costs  than  competitors  with  their  own  fabrication  facilities.  If the
foundries we use are unable or unwilling to manufacture our products in required
volumes,  we  may  have  to  identify  and  qualify  acceptable   additional  or
alternative  foundries.  This  qualification  process  could  take six months or
longer. We may not find sufficient  capacity quickly enough, if ever, to satisfy
our production requirements.

Some  companies  that supply our customers are similarly  dependent on a limited
number of suppliers to produce their products.  These other companies'  products
may be designed into the same  networking  equipment into which our products are
designed.  Our order levels could be reduced  materially if these  companies are
unable to access sufficient  production  capacity to produce in volumes demanded
by our  customers  because  our  customers  may be  forced  to slow down or halt
production on the equipment into which our products are designed.


         We depend on third  parties in Asia for  assembly of our  semiconductor
         products that could delay and limit our product shipments.

Sub-assemblers in Asia assemble all of our semiconductor  products. Raw material
shortages, political and social instability, assembly house service disruptions,
currency  fluctuations,  or other  circumstances in the region could force us to
seek additional or alternative sources of supply or assembly. This could lead to
supply  constraints or product  delivery delays that, in turn, may result in the
loss of  revenues.  We have  less  control  over  delivery  schedules,  assembly
processes,  quality  assurances and costs than competitors that do not outsource
these tasks.

Severe acute respiratory syndrome, or SARS, may disrupt our wafer fabrication or
assembly  manufacturers located in Asia which could adversely impact our ability
to ship orders, reducing our revenues in that quarter

         We depend on a limited number of design software suppliers, the loss of
         which could impede our product development.

A limited  number of  suppliers  provide  the  computer  aided  design,  or CAD,
software  we  use  to  design  our  products.   Factors   affecting  the  price,
availability or technical  capability of these products could affect our ability
to access  appropriate CAD tools for the development of highly complex products.
In  particular,  the CAD  software  industry  has been the subject of  extensive
intellectual  property rights litigation,  the results of which could materially
change the  pricing  and nature of the  software  we use.  We also have  limited
control over whether our software  suppliers will be able to overcome  technical
barriers in time to fulfill our needs.


From time to time, we become  defendants in legal proceedings about which we are
unable to assess our  exposure and which could  become  significant  liabilities
upon judgment.

                                       28


We become  defendants in legal  proceedings from time to time.  Companies in our
industry have been subject to claims related to patent  infringement and product
liability,  as well  as  contract  and  personal  claims.  We may not be able to
accurately  assess  the risk  related  to these  suits,  and we may be unable to
accurately  assess  our  level of  exposure.  These  proceedings  may  result in
material  charges to our  operating  results in the  future if our  exposure  is
material and if our ability to assess our exposure becomes clearer.

If we cannot protect our proprietary  technology,  we may not be able to prevent
competitors  from copying our technology  and selling  similar  products,  which
would harm our revenues.

To compete effectively,  we must protect our proprietary information. We rely on
a  combination   of  patents,   trademarks,   copyrights,   trade  secret  laws,
confidentiality   procedures   and   licensing   arrangements   to  protect  our
intellectual  property  rights.  We hold  several  patents  and have a number of
pending patent applications.

We might not succeed in attaining patents from any of our pending  applications.
Even if we are awarded patents,  they may not provide any meaningful  protection
or  commercial  advantage  to us,  as they  may not be of  sufficient  scope  or
strength,  or may not be issued in all countries where our products can be sold.
In addition, our competitors may be able to design around our patents.

We develop,  manufacture and sell our products in Asian and other countries that
may not protect our products or intellectual  property rights to the same extent
as the laws of the  United  States.  This  makes  piracy of our  technology  and
products more likely.  Steps we take to protect our proprietary  information may
not be  adequate  to  prevent  theft  of our  technology.  We may not be able to
prevent our competitors  from  independently  developing  technologies  that are
similar to or better than ours.


Our products employ  technology  that may infringe on the proprietary  rights of
third parties, which may expose us to litigation and prevent us from selling our
products.

Vigorous  protection and pursuit of  intellectual  property  rights or positions
characterize  the  semiconductor  industry.  This often results in expensive and
lengthy  litigation.  We,  and our  customers  or  suppliers,  may be accused of
infringing  on  patents or other  intellectual  property  rights  owned by third
parties.  This has  happened in the past.  An adverse  result in any  litigation
could force us to pay substantial damages, stop manufacturing, using and selling
the infringing products,  spend significant resources to develop  non-infringing
technology,  discontinue  using  certain  processes  or obtain  licenses  to the
infringing technology. In addition, we may not be able to develop non-infringing
technology,  nor might we be able to find  appropriate  licenses  on  reasonable
terms.

Patent  disputes  in  the  semiconductor  industry  are  often  settled  through
cross-licensing  arrangements.  Because we currently  do not have a  substantial
portfolio of patents compared to our larger  competitors,  we may not be able to
settle  an  alleged  patent   infringement   claim  through  a   cross-licensing
arrangement.  We are  therefore  more exposed to third party claims than some of
our larger competitors and customers.

In the past,  our customers  have been required to obtain  licenses from and pay
royalties  to  third  parties  for  the  sale  of  systems   incorporating   our
semiconductor devices. Customers may also make claims against us with respect to
infringement.

                                       29


Furthermore,  we may initiate  claims or  litigation  against  third parties for
infringing  our  proprietary   rights  or  to  establish  the  validity  of  our
proprietary  rights.  This could  consume  significant  resources and divert the
efforts  of  our  technical  and   management   personnel,   regardless  of  the
litigation's outcome.


We have  significantly  increased  our debt  level  as a  result  of the sale of
convertible subordinated notes.

On August 6, 2001,  we raised $275 million  through the issuance of  convertible
subordinated notes. As a result, our interest payment obligations have increased
substantially.  The  degree  to  which we are  leveraged  could  materially  and
adversely   affect  our  ability  to  obtain   financing  for  working  capital,
acquisitions  or other  purposes and could make us more  vulnerable  to industry
downturns  and  competitive  pressures.  Our  ability  to meet our debt  service
obligations will be dependent upon our future performance, which will be subject
to financial, business and other factors affecting our operations, many of which
are beyond our  control.  On August 15,  2006,  we are obliged to repay the full
remaining  principal  amount of the notes that have not been  converted into our
common stock.


Securities we issue to fund our operations could dilute your ownership.

We may decide to raise additional funds through public or private debt or equity
financing  to  fund  our  operations.  If  we  raise  funds  by  issuing  equity
securities, the percentage ownership of current stockholders will be reduced and
the new equity  securities may have priority rights to your  investment.  We may
not obtain sufficient financing on terms that are favorable to you or us. We may
delay,  limit or eliminate  some or all of our proposed  operations  if adequate
funds are not available.


Our stock price has been and may continue to be volatile.

In the past, our common stock price has fluctuated significantly. In particular,
our stock price declined  significantly in the context of announcements  made by
us and other  semiconductor  suppliers of reduced revenue  expectations and of a
general  slowdown  in  the  markets  we  serve.  Given  these  general  economic
conditions and the reduced demand for our products that we have experienced,  we
expect that our stock price will continue to be volatile.

In addition,  fluctuations in our stock price and our price-to-earnings multiple
may have made our stock attractive to momentum,  hedge or day-trading  investors
who  often  shift  funds  into and out of  stocks  rapidly,  exacerbating  price
fluctuations in either direction particularly when viewed on a quarterly basis.

Securities class action  litigation has often been instituted  against a company
following  periods  of  volatility  and  decline  in the  market  price of their
securities. If instituted against us, regardless of the outcome, such litigation
could result in substantial  costs and diversion of our  management's  attention
and resources  and have a material  adverse  effect on our  business,  financial
condition  and  operating  results.  We could  be  required  to pay  substantial
damages, including punitive damages, if we were to lose such a lawsuit.


Provisions  in our charter  documents  and  Delaware  law and our  adoption of a
stockholder  rights  plan may delay or prevent  acquisition  of us,  which could
decrease the value of our common stock.

                                       30


Our certificate of incorporation and bylaws and Delaware law contain  provisions
that could make it harder for a third party to acquire us without the consent of
our board of directors.  Delaware law also imposes some  restrictions on mergers
and other business  combinations between us and any holder of 15% or more of our
outstanding  common stock. In addition,  our board of directors has the right to
issue  preferred  stock  without  stockholder  approval,  which could be used to
dilute the stock ownership of a potential hostile acquirer.  Although we believe
these provisions of our certificate of incorporation and bylaws and Delaware law
and our  stockholder  rights plan will provide for an  opportunity  to receive a
higher bid by  requiring  potential  acquirers  to  negotiate  with our board of
directors, these provisions apply even if the offer may be considered beneficial
by some stockholders.

Our board of directors adopted a stockholder  rights plan,  pursuant to which we
declared and paid a dividend of one right for each share of common stock held by
stockholders  of record as of May 25, 2001.  Unless  redeemed by us prior to the
time the rights are exercised, upon the occurrence of certain events, the rights
will  entitle  the  holders  to  receive  upon  exercise  thereof  shares of our
preferred stock, or shares of an acquiring entity, having a value equal to twice
the  then-current  exercise price of the right. The issuance of the rights could
have the effect of delaying or preventing a change in control of us.



Item 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The following  discussion  regarding  our risk  management  activities  contains
"forward-looking  statements"  that  involve  risks  and  uncertainties.  Actual
results  may differ  materially  from  those  projected  in the  forward-looking
statements.


         Cash Equivalents, Short-term Investments and Investments in Bonds
         and Notes:

We  regularly  maintain a short and long term  investment  portfolio  of various
types of government and corporate  bonds and notes.  Our investments are made in
accordance  with an  investment  policy  approved  by our  Board  of  Directors.
Maturities of these  instruments are less than 30 months with the majority being
within one year.  To minimize  credit risk,  we diversify  our  investments  and
select  minimum  ratings of P-1 or A by  Moody's,  or A-1 or A by  Standard  and
Poor's, or equivalent.

We classify these securities as held-to-maturity or available-for-sale depending
on our investment intention.  Held-to-maturity investments are held at amortized
cost,  while  available-for-sale  investments  are  held at fair  market  value.
Available-for-sale  securities  represented  less  than  18% of  our  investment
portfolio as of March 30, 2003.

Investments  in both fixed rate and floating rate interest  earning  instruments
carry a degree of interest  rate and credit rating risk.  Fixed rate  securities
may have  their  fair  market  value  adversely  impacted  because  of a rise in
interest  rates,  while  floating rate  securities  may produce less income than
expected  if  interest  rates  fall.  In  addition,  the  value of all  types of
securities may be impaired if bond rating  agencies  decrease the credit ratings
of the entities which issue those securities.  Due in part to these factors, our
future  investment  income may fall short of expectations  because of changes in
interest  rates,  or we may  suffer  losses  in  principal  if we  were  to sell
securities  that have  declined in market  value  because of changes in interest
rates or a decrease in credit ratings.

We do not  attempt to reduce or  eliminate  our  exposure to changes in interest
rates or credit ratings through the use of derivative financial instruments.

                                       31


Based on a sensitivity  analysis performed on the financial  instruments held at
March 30, 2003 that are  sensitive to changes in interest  rates,  the impact to
the fair value of our investment portfolio by an immediate hypothetical parallel
shift in the yield  curve of plus or minus 50,  100 or 150  basis  points  would
result in a  decline  or  increase  in  portfolio  value of  approximately  $2.4
million, $4.8 million and $7.2 million respectively.


         Other Investments:

Other   investments  at  March  30,  2003  include  a  minority   investment  of
approximately  1.9 million  shares of Sierra  Wireless  Inc., a publicly  traded
company.  These  securities are recorded on the balance sheet at fair value with
unrealized gains or losses reported as a separate component of accumulated other
comprehensive income, net of income taxes.

Our other investments also include numerous  strategic  investments in privately
held  companies or venture  funds that are carried on our balance sheet at cost,
net of write-downs for non-temporary declines in market value. We expect to make
additional   investments  like  these  in  the  future.  These  investments  are
inherently  risky,  as they  typically are comprised of investments in companies
and  partnerships  that are still in the  start-up or  development  stages.  The
market for the  technologies  or products  that they have under  development  is
typically  in the early  stages,  and may never  materialize.  We could lose our
entire investment in these companies and partnerships or may incur an additional
expense if we determine that the value of these assets have been impaired.


         Foreign Currency:

Our sales and  corresponding  receivables  are made  primarily in United  States
dollars.  We  generate  a  significant  portion  of our  revenues  from sales to
customers located outside the United States including Canada, Europe, the Middle
East and Asia.  We are  subject to risks  typical of an  international  business
including,  but not  limited  to,  differing  economic  conditions,  changes  in
political climate, differing tax structures,  other regulations and restrictions
and foreign exchange rate volatility.  Accordingly,  our future results could be
materially adversely affected by changes in these or other factors.

Through our  operations in Canada and elsewhere  outside the United  States,  we
incur  research  and  development,  customer  support  costs and  administrative
expenses in Canadian and other foreign currencies. We are exposed, in the normal
course of business,  to foreign  currency  risks on these  expenditures.  In our
effort to manage such risks, we have adopted a foreign  currency risk management
policy  intended to reduce the effects of potential  short-term  fluctuations on
our operating results stemming from our exposure to these risks. As part of this
risk management,  we typically forecast our operational currency needs, purchase
such currency on the open market at the beginning of an operational  period, and
hold these funds as a hedge against currency fluctuations.  We usually limit the
operational  period to 3 months or less.  Because  we do not  engage in  foreign
currency  exchange rate  fluctuation  risk  management  techniques  beyond these
periods,  our cost structure is subject to long-term changes in foreign exchange
rates.

While we expect to utilize this method of managing our foreign  currency risk in
the future,  we may change our foreign currency risk management  methodology and
utilize  foreign  exchange  contracts  that are  currently  available  under our
operating line of credit agreement.

                                       32


We  regularly  analyze the  sensitivity  of our foreign  exchange  positions  to
measure our foreign  exchange  risk.  At March 30,  2003, a 10% shift in foreign
exchange rates would not have  materially  impacted our other income because our
foreign currency net asset position was immaterial.

Item 4.  CONTROLS AND PROCEDURES


         Evaluation of disclosure controls and procedures

Our chief  executive  officer  and our chief  financial  officer  evaluated  our
"disclosure  controls  and  procedures"  (as  defined in Rule  13a-14(c)  of the
Securities Exchange Act of 1934 (the "Exchange Act") as of a date within 90 days
before the filing date of this quarterly  report.  They concluded that as of the
evaluation date, our disclosure  controls and procedures are effective to ensure
that  information  we are required to disclose in reports that we file or submit
under the Exchange Act is recorded,  processed,  summarized and reported  within
the time periods  specified in the Securities and Exchange  Commission rules and
forms.


         Changes in internal controls

Subsequent to the date of their evaluation, there were no significant changes in
our internal controls or in other factors that could significantly  affect these
controls.  There were no significant  deficiencies or material weaknesses in our
internal controls so no corrective actions were taken.


Part II - OTHER INFORMATION

Item 6.      EXHIBITS AND REPORTS ON FORM 8-K

(a) Exhibits -

    o        10.1      1991 Employee Stock Purchase Plan, as amended

    o        10.2      1994 Incentive Stock Plan, as amended

    o        11.1      Calculation of income (loss) per share  *1

    o        99.1      Certification    Pursuant   to   Section   906   of   the
                       Sarbanes-Oxley Act of 2002 (Chief Executive Officer)

    o        99.2      Certification    Pursuant   to   Section   906   of   the
                       Sarbanes-Oxley Act of 2002 (Chief Financial Officer)


(b) Reports on Form 8-K -

    - A  Current  Report  on Form 8-K was filed on  January  27,  2003 to report
    fourth quarter and year end 2002 financial results and to report a corporate
    restructuring.

- --------
*1 Refer to Note 5 of the financial  statements  included in Item I of Part I of
this Quarterly Report.


                                       33





SIGNATURE

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.



                                       PMC-SIERRA, INC.
                                       (Registrant)


Date:    May 12, 2003                  /S/  Alan F. Krock
         ------------                  -----------------------------------------
                                       Alan F. Krock
                                       Vice President, Finance
                                       Chief Financial Officer and
                                       Principal Accounting Officer






                                       34



CERTIFICATIONS

I, Robert L. Bailey, certify that:

1. I have reviewed this quarterly report on Form 10-Q of PMC-Sierra, Inc.;

2. Based on my  knowledge,  this  quarterly  report  does not contain any untrue
   statement of a material  fact or omit to state a material  fact  necessary to
   make the  statements  made,  in light of the  circumstances  under which such
   statements  were made, not  misleading  with respect to the period covered by
   this quarterly report;

3. Based  on  my  knowledge,  the  financial  statements,  and  other  financial
   information included in this quarterly report, fairly present in all material
   respects the financial condition, results of operations and cash flows of the
   registrant as of, and for, the periods presented in this quarterly report;

4. The  registrant's  other  certifying  officers  and  I  are  responsible  for
   establishing and maintaining  disclosure  controls and procedures (as defined
   in Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have:

   a) designed such  disclosure  controls and procedures to ensure that material
   information   relating  to  the   registrant,   including  its   consolidated
   subsidiaries,   is  made  known  to  us  by  others  within  those  entities,
   particularly  during  the  period  in which  this  quarterly  report is being
   prepared;

   b) evaluated the  effectiveness of the registrant's  disclosure  controls and
   procedures  as of a date  within  90 days  prior to the  filing  date of this
   quarterly report (the "Evaluation Date"); and

   c) presented in this quarterly report our conclusions about the effectiveness
   of the disclosure  controls and procedures  based on our evaluation as of the
   Evaluation Date;

5. The registrant's other certifying officers and I have disclosed, based on our
   most recent evaluation,  to the registrant's auditors and the audit committee
   of  registrant's  board of directors (or persons  performing  the  equivalent
   functions):

   a) all  significant  deficiencies  in the  design or  operation  of  internal
   controls which could  adversely  affect the  registrant's  ability to record,
   process,  summarize and report  financial  data and have  identified  for the
   registrant's auditors any material weaknesses in internal controls; and

   b) any fraud,  whether or not  material,  that  involves  management or other
   employees who have a significant role in the registrant's  internal controls;
   and

6. The  registrant's  other  certifying  officers  and I have  indicated in this
   quarterly  report whether or not there were  significant  changes in internal
   controls  or in  other  factors  that  could  significantly  affect  internal
   controls subsequent to the date of our most recent evaluation,  including any
   corrective  actions  with regard to  significant  deficiencies  and  material
   weaknesses.

Date:    May 12, 2003                          /S/  Robert L. Bailey
         ------------                          ---------------------------------
                                               Robert L. Bailey
                                               President and
                                               Chief Executive Officer



                                       35




I, Alan F. Krock, certify that:

1. I have reviewed this quarterly report on Form 10-Q of PMC-Sierra, Inc.;

2. Based on my  knowledge,  this  quarterly  report  does not contain any untrue
   statement of a material  fact or omit to state a material  fact  necessary to
   make the  statements  made,  in light of the  circumstances  under which such
   statements  were made, not  misleading  with respect to the period covered by
   this quarterly report;

3. Based  on  my  knowledge,  the  financial  statements,  and  other  financial
   information included in this quarterly report, fairly present in all material
   respects the financial condition, results of operations and cash flows of the
   registrant as of, and for, the periods presented in this quarterly report;

4. The  registrant's  other  certifying  officers  and  I  are  responsible  for
   establishing and maintaining  disclosure  controls and procedures (as defined
   in Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have:

   a) designed such  disclosure  controls and procedures to ensure that material
   information   relating  to  the   registrant,   including  its   consolidated
   subsidiaries,   is  made  known  to  us  by  others  within  those  entities,
   particularly  during  the  period  in which  this  quarterly  report is being
   prepared;

   b) evaluated the  effectiveness of the registrant's  disclosure  controls and
   procedures  as of a date  within  90 days  prior to the  filing  date of this
   quarterly report (the "Evaluation Date"); and

   c) presented in this quarterly report our conclusions about the effectiveness
   of the disclosure  controls and procedures  based on our evaluation as of the
   Evaluation Date;

5. The registrant's other certifying officers and I have disclosed, based on our
   most recent evaluation,  to the registrant's auditors and the audit committee
   of  registrant's  board of directors (or persons  performing  the  equivalent
   functions):

   a) all  significant  deficiencies  in the  design or  operation  of  internal
   controls which could  adversely  affect the  registrant's  ability to record,
   process,  summarize and report  financial  data and have  identified  for the
   registrant's auditors any material weaknesses in internal controls; and

   b) any fraud,  whether or not  material,  that  involves  management or other
   employees who have a significant role in the registrant's  internal controls;
   and

6. The  registrant's  other  certifying  officers  and I have  indicated in this
   quarterly  report whether or not there were  significant  changes in internal
   controls  or in  other  factors  that  could  significantly  affect  internal
   controls subsequent to the date of our most recent evaluation,  including any
   corrective  actions  with regard to  significant  deficiencies  and  material
   weaknesses.


Date:    May 12, 2003                      /S/  Alan F. Krock
         ------------                           --------------------------------
                                                Alan F. Krock
                                                Vice President, Finance
                                                Chief Financial Officer and
                                                Principal Accounting Officer




                                       36