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

                                  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 April 1, 2001

            [ ] 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) 369-1176

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 _______


             Common shares outstanding at May 1, 2001 - 164,069,025
            --------------------------------------------------------







                                      INDEX


                                                                            Page

PART I - FINANCIAL INFORMATION

Item 1.            Financial Statements

            -      Condensed consolidated statements of operations           3

            -      Condensed consolidated balance sheets                     4

            -      Condensed consolidated statements of cash flows           5

            -      Notes to condensed consolidated financial statements      6

Item 2.     Management's Discussion and Analysis of Financial
            Condition and Results of Operations                              9

Item 3.     Quantitative and Qualitative Disclosures About
            Market Risk                                                     27


PART II - OTHER  INFORMATION

Item 2.     Changes in Securities and Use of Proceeds                       30

Item 6.     Exhibits and Reports on Form 8 - K                              30





                         Part I - FINANCIAL INFORMATION
                          Item 1 - Financial Statements


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


                                                        Three Months Ended
                                                  ------------------------------
                                                       Apr 1,          Mar 26,
                                                        2001            2000
Net revenues
 Networking                                        $    116,146    $    109,312
 Non-networking                                           3,749           5,054
                                                  --------------  --------------
 Total                                                  119,895         114,366

Cost of revenues                                         37,927          26,172
                                                  --------------  --------------
 Gross profit                                            81,968          88,194


Other costs and expenses:
 Research and development                                57,468          32,258
 Marketing, general and administrative                   25,093          18,125
 Amortization of deferred stock compensation:
   Research and development                              27,900           3,679
   Marketing, general and administrative                    519             371
 Amortization of goodwill                                17,811             459
 Costs of merger                                              -           7,902
 Restructuring costs                                     19,900               -
                                                  --------------  --------------
Income (loss) from operations                           (66,723)         25,400

Other income, net                                         4,867           3,915
Gain on sale of investments                                 401           4,117
                                                  --------------  --------------
Income (loss) before provision for income taxes         (61,455)         33,432

Provision for income taxes                                2,071          15,917
                                                  --------------  --------------
Net income (loss)                                  $    (63,526)   $     17,515
                                                  ==============  ==============

Net income (loss) per common share - basic         $      (0.38)   $       0.11

Net income (loss) per common share - diluted       $      (0.38)   $       0.10

Shares used in per share calculation - basic            166,786         157,798
Shares used in per share calculation - diluted          166,786         177,658

See notes to consolidated financial statements.


                                PMC-Sierra, Inc.
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                                 (in thousands)


                                                                               Apr 1,         Dec 31,
                                                                                2001           2000
                                                                            (unaudited)
                                                                                         
ASSETS:
Current assets:
 Cash and cash equivalents                                                 $    318,704   $    256,198
 Short-term investments                                                          24,901        118,918
 Accounts receivable, net                                                        40,807         93,852
 Inventories, net                                                                63,727         54,913
 Deferred income taxes                                                           13,947         13,947
 Prepaid expenses and other current assets                                       19,894         26,910
 Short-term deposits for wafer fabrication capacity                               4,266          6,265
                                                                          -------------- --------------
  Total current assets                                                          486,246        571,003

Property and equipment, net                                                     126,745        127,534
Goodwill and other intangible assets, net                                       307,780        326,150
Investments and other assets                                                     49,936         84,667
Deposits for wafer fabrication capacity                                          21,991         16,736
                                                                          -------------- --------------
                                                                           $    992,698   $  1,126,090
                                                                          ============== ==============

LIABILITIES AND STOCKHOLDERS' EQUITY:
Current liabilities:
 Accounts payable                                                          $     22,035   $     60,978
 Accrued liabilities                                                             35,062         39,724
 Accrued restructuring costs                                                     15,553              -
 Deferred income                                                                 56,289         64,055
 Income taxes payable                                                            26,017         63,491
 Current portion of obligations under capital leases and long-term debt           1,491          1,769
                                                                          -------------- --------------
  Total current liabilities                                                     156,447        230,017

Deferred income taxes                                                            23,027         37,824
Non-current obligations under capital leases and long-term debt                     313            564

PMC special shares convertible into 3,687 (2000 - 3,746) shares
of common stock                                                                   6,284          6,367

Stockholders' equity
 Capital stock and additional  paid in capital,  par value $.001;
   900,000 shares authorized; 163,794 shares issued and
   outstanding (2000 - 162,284)                                                 804,730        796,229
 Deferred stock compensation                                                    (11,502)       (43,128)
 Accumulated other comprehensive income                                          11,271         32,563
 Retained earnings                                                                2,128         65,654
                                                                          -------------- --------------
Total stockholders' equity                                                      806,627        851,318
                                                                          -------------- --------------
                                                                           $    992,698   $  1,126,090
                                                                          ============== ==============



See notes to consolidated financial statements.




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


                                                                          Three Months Ended
                                                                -------------------------------------
                                                                        Apr 1,              Mar 26,
                                                                         2001                2000
                                                                                      
Cash flows from operating activities:
 Net income (loss)                                               $       (63,526)   $        17,515
 Adjustments to reconcile net income (loss) to net cash
 provided by (used in) operating activities:
  Depreciation of property and equipment                                  13,239              6,793
  Amortization of goodwill and other intangibles                          18,370                992
  Amortization of deferred stock compensation                             28,419              4,050
  Equity in income of investee                                                 -               (725)
  Gain on sale of investments                                               (401)            (4,117)
  Loss on disposal of property and equipment                                 137                  -
  Restructuring costs                                                     19,900                  -
  Changes in operating assets and liabilities
   Accounts receivable                                                    53,045            (12,259)
   Inventories                                                            (8,814)            (5,269)
   Prepaid expenses and other current assets                               7,016             (1,024)
   Accounts payable and accrued liabilities                              (43,605)            22,008
   Accrued restructuring costs                                              (359)                 -
   Deferred income                                                        (7,766)             8,058
   Income taxes payable                                                  (37,474)           (12,566)
                                                                -----------------  ------------------
     Net cash provided by (used in) operating activities                 (21,819)            23,456
                                                                -----------------  ------------------

Cash flows from investing activities:
 Purchases of short-term investments                                     (23,453)            (1,794)
 Proceeds from sales and maturities of short-term investments            117,470            106,636
 Purchases of property and equipment                                     (16,575)           (15,984)
 Purchase of investments                                                    (957)              (401)
 Proceeds from sale of investments                                             -              4,167
 Investment in wafer fabrication deposits                                 (5,188)                 -
 Proceeds from refund of wafer fabrication deposits                        1,932              4,000
 Acquisition of businesses, net of cash acquired                               -                (29)
                                                                -----------------  ------------------
     Net cash provided by investing activities                            73,229             96,595
                                                                -----------------  ------------------

Cash flows from financing activities:
 Repayment of notes payable and long-term debt                              (100)            (2,524)
 Principal payments under capital lease obligations                         (429)              (648)
 Proceeds from issuance of common stock                                   11,625             59,112
                                                                -----------------  ------------------
     Net cash provided by financing activities                            11,096             55,940
                                                                -----------------  ------------------

Net increase in cash and cash equivalents                                 62,506            175,991
Cash and cash equivalents, beginning of the period                       256,198            101,514
                                                                -----------------  ------------------
Cash and cash equivalents, end of the period                     $       318,704    $       277,505
                                                                =================  ==================

See notes to consolidated financial statements.




                                PMC-Sierra, Inc.

              NOTES TO CONDENSED 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-performance   semiconductor  networking
solutions.  Our products are used in the high-speed  transmission and networking
systems,  which are being used to restructure the global  telecommunications and
data communications infrastructure.

Basis of presentation.  The accompanying 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 which 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 10K
for the year ended  December 31, 2000. The results of operations for the interim
periods  are not  necessarily  indicative  of results to be  expected  in future
periods.

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:


(in thousands)                              Apr 1,          Dec 31,
                                             2001            2000
                                         (unaudited)

Work-in-progress                        $     26,596    $     31,035
Finished goods                                37,131          23,878
                                       --------------  --------------
                                        $     63,727    $     54,913
                                       ==============  ==============


Recently issued  accounting  standards.  In June 1998, the Financial  Accounting
Standards Board (FASB) issued Statement of Financial Accounting Standard No. 133
(SFAS 133),  "Accounting  for Derivative  Instruments  and Hedging  Activities",
which establishes  accounting and reporting standards for derivative instruments
and hedging activities.  SFAS 133 requires the recognition of all derivatives on
the Company's  consolidated balance sheet at fair value. The Company adopted the
new Statement  effective  January 1, 2001. The initial  adoption of SFAS 133 did
not have a material effect on the Company's financial statements.


NOTE 2.   Restructuring and Other Costs


                                  Restructuring                      Balance at
(in thousands)                            Costs        Utilized     Apr 1, 2001
                                  --------------  --------------  --------------

Workforce reduction                $      9,367               -    $      9,367

Excess facility costs                     4,719            (359)          4,360

Contract settlement costs                 1,826               -           1,826

Write-down of property and
 equipment                                3,988          (3,988)              -
                                  --------------  --------------  --------------

Total                              $     19,900    $     (4,347)   $     15,553
                                  ==============  ==============  ==============

In the first quarter of 2001, PMC announced a restructuring  plan in response to
the decline in demand for its networking  products and  consequently  recorded a
restructuring  charge of $19.9 million.  Restructuring  activities  involved the
curtailment  of certain  research and  development  projects  through  workforce
reduction and facility consolidation.

Workforce  reduction  charges include the cost of severance and related benefits
of approximately 230 employees affected by the restructuring activities.  Excess
facility costs represent lease termination payments and related costs.  Contract
settlement costs include penalties incurred due to the Company's withdrawal from
certain  purchase  contracts.   Certain  leasehold  improvements  and  equipment
determined to be impaired as a result of the  restructuring  activities and were
written down to estimated fair market value, net of disposal costs.

The Company  expects to  substantially  complete  the  restructuring  activities
contemplated in the plan by December 31, 2001.

Other charges

During  the first  quarter  of 2001,  PMC  recorded a  provision  for  inventory
write-downs  of $2.1 million due to  cancellation  of certain of its  customers'
programs. This charge was included in cost of sales.

NOTE 3.   Segment Information

The Company has two operating segments:  networking and non-networking products.
The networking  segment consists of  internetworking  semiconductor  devices and
related  technical  service and support to  equipment  manufacturers  for use in
their  communications  and  networking  equipment.  The  non-networking  segment
includes  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.  The Company evaluates  performance
based on net revenues and gross profits from operations of the two segments.

                                                Three months ended
                                         -------------------------------
(in thousands)                                 Apr 1,          Mar 26,
                                                2001            2000
                                                    (unaudited)
Net revenues

 Networking                               $     116,146   $     109,312
 Non-networking                                   3,749           5,054
                                         --------------- ---------------
 Total                                    $     119,895   $     114,366
                                         =============== ===============


Gross profit

 Networking                               $      80,337   $      85,946
 Non-networking                                   1,631           2,248
                                         --------------- ---------------
 Total                                    $      81,968   $      88,194
                                         =============== ===============


NOTE 4.   Other Comprehensive Income

The components of other comprehensive income, net of tax, are as follows:


                                                Three months ended
                                         -------------------------------
(in thousands)                                 Apr 1,          Mar 26,
                                                2001            2000
                                                    (unaudited)

Net income (loss)                         $     (63,526)  $      17,515
Other comprehensive income(loss):
Change in net unrealized gains on
investments, net of tax of $14,797
(2000 - nil)                                    (21,292)              -

                                         --------------- ---------------
Total other comprehensive income (loss)   $     (84,818)  $      17,515
                                         =============== ===============


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
                                         -------------------------------
                                               Apr 1,          Mar 26,
(in thousands except per share amounts)         2001            2000
                                                    (unaudited)

Numerator:
  Net income (loss)                       $     (63,526)  $      17,515
                                         =============== ===============

Denominator:
Basic weighted average common shares
outstanding (1)                                 166,786         157,798
  Effect of dilutive securities:
    Stock options                                     -          19,692
    Stock warrants                                    -             168
                                         --------------- ---------------

  Diluted weighted average common
  shares outstanding                      $     166,786   $     177,658
                                         =============== ===============

Basic net income (loss) per share         $       (0.38)  $        0.11
                                         =============== ===============

Diluted net income (loss) per share       $       (0.38)  $        0.10
                                         =============== ===============


(1)      Exchangeable shares and PMC-Sierra, Ltd. special shares are included in
         the calculation of basic net income (loss) per share.




NOTE 6.   Subsequent Event

On April 26, 2001,  PMC adopted a  stockholders'  rights plan.  Under the rights
plan,  the  Company  will issue a dividend of one right for each share of common
stock of the Company held by  stockholders  of record as of May 25,  2001.  Each
right will initially entitle  stockholders to purchase a fractional share of the
Company's preferred stock for $325.00.  However,  the rights are not immediately
exercisable  and will become  exercisable  only upon the  occurrence  of certain
events.  Upon occurrence of these events,  unless redeemed for $0.001 per right,
the rights  will  become  exercisable  by  holders,  other than rights held by a
potential  unsolicited  third party  acquirer,  for shares of the Company or for
shares  of the  third  party  acquirer  having  a value  of  twice  the  right's
then-current exercise price.


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

The  following  discussion  of  the  financial  condition  and  results  of  our
operations  should  be read  in  conjunction  with  the  consolidated  financial
statements and notes thereto included  elsewhere in this Quarterly Report.  This
discussion  contains  forward-looking  statements  that are subject to known and
unknown  risks,  uncertainties  and other  factors  that may  cause  our  actual
results,  levels of  activity,  performance,  achievements  and  prospects to be
materially  different  from those  expressed or implied by such  forward-looking
statements.  These risks, uncertainties and other factors include, among others,
those  identified  under "Factors that You Should Consider  Before  Investing In
PMC-Sierra" and elsewhere in this Quarterly Report.

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.  In light of these risks,  uncertainties,  and assumptions,
the forward-looking  events discussed in this report might not occur. Our actual
results could differ materially from those anticipated in these  forward-looking
statements  for many  reasons,  including the risks we face as described in this
Quarterly  Report and readers 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:

- -        customer networking product needs and order levels;
- -        revenues;
- -        gross profit;
- -        research and development expenses;
- -        marketing, general and administrative expenditures;
- -        capital resources sufficiency;
- -        capital expenditures; and
- -        restructuring activities and expenses.

PMC  releases  earnings  at  regularly  scheduled  times  after  the end of each
reporting  period.  Typically  within  one hour of the  release,  we will hold a
conference call to discuss our performance during the period. We welcome all PMC
stockholders  to listen to these calls  either by phone or over the  Internet by
accessing our website at www.pmc-sierra.com.


Developments in 2001

During the first quarter of 2001, our customers  cancelled more orders than they
placed.  Our backlog for second quarter delivery at the end of the first quarter
of 2001 was $94  million.  Of that amount,  $24 million  related to our top five
customers.  These same  customers  purchased  approximately  $50  million of our
networking products in the first quarter of 2001 and $130 million in last year's
fourth quarter.  Most of these customers are North American and have substantial
communications  component  inventories,  including significant quantities of our
networking products. We expect that these historically larger customers actually
need the networking  products that are included in our second  quarter  backlog,
but  we do not  anticipate  additional  orders  from  them  for  second  quarter
delivery.

We have over two hundred other European,  Asian and North American customers who
account  for the  remaining  $70  million in backlog  for  second  quarter  2001
delivery.  These customers purchased, in aggregate,  $70 million of our products
in the first  quarter of 2001 and $101  million of our  products  in last year's
fourth  quarter.  We expect to receive a small amount of additional  orders from
this group for second quarter delivery.

Many of our customers are  continuing to experience  decreased  demand for their
products  because  some  service   providers  have  high  networking   equipment
inventories or have decreased their broadband network capital spending rates. We
expect that this,  combined with the  significant  inventories of our networking
products, will prolong or worsen the decline in our networking revenues into the
third quarter of 2001.

Our gross profit as a percentage of revenues declined significantly in the first
quarter  of 2001 and may  decline  again in the  second  quarter  of 2001 if our
customers'  order mix  continues  to include  proportionately  more lower margin
networking  and  non-networking  products.  Our gross profit as a percentage  of
sales will also decline in the second  quarter of 2001 because we expect that we
will have to allocate  our fixed test  capacity  costs over  reduced  production
volumes.

During the first quarter of 2001, we announced a  restructuring  plan to curtail
certain activities, through workforce reduction and facilities consolidation, in
response to the decline in demand for our  networking  products.  We expect that
this restructuring will allow us to slow the rate of growth, or slightly reduce,
our operating  expenses.  It is our intention to limit our headcount  growth and
associated  costs for the foreseeable  future.  See Note 2 of Item 1 - Financial
Statements and "Restructuring Costs" below.


Results of Operations

First Quarters of 2001 and 2000


Net Revenues ($000,000)
- -----------------------
                                                   First Quarter
                                           ----------------------------
                                               2001           2000       Change

Networking products                         $     116.1    $     109.3      6%
Non-networking products                             3.8            5.1    (25%)
                                           ----------------------------
Total net revenues                          $     119.9    $     114.4      5%
                                           ============================


Net revenues  increased by 5% in the first  quarter of 2001 compared to the same
quarter in 2000.

Networking  revenue  grew 6% as a result  of an  increase  in the  volume of our
product sales when comparing the first quarters of 2001 and 2000. However, first
quarter 2001 networking  revenue  declined 48% from revenue of $223.6 million in
fourth  quarter  2000.  This  decrease  in  networking   revenue  resulted  from
significantly  reduced orders from our customers in response to rising inventory
levels of our products and declining demand for our customers' equipment.

Non-networking  revenues  declined 25% in the first  quarter of 2001 compared to
the first quarter of 2000 due to decreased  orders by our principal  customer in
this segment. Sales of our non-networking device are expected to decline to zero
by the end of 2001 as our principal customer intends to redesign its product and
it will no longer incorporate our non-networking device.



Gross Profit ($000,000)
- -----------------------
                                                   First Quarter
                                           ----------------------------
                                               2001           2000       Change

Networking products                         $      80.4    $      85.9    ( 6%)
Non-networking products                             1.6            2.3    (30%)
                                           ----------------------------
Total gross profit                          $      82.0    $      88.2    ( 7%)
                                           ============================
   Percentage of net revenues                       68%            77%



Total  gross  profit  declined 7% in the first  quarter of 2001  compared to the
first quarter of 2000.

Networking  product  gross  profit  decreased  6% in the first  quarter  of 2001
because our sales mix shifted to lower margin networking products,  we allocated
our fixed test capacity costs over reduced  production volume, and we wrote down
$2.1 million of inventory as a result of customer product  development  programs
that were cancelled.

Non-networking  gross profit  declined 30% in the first quarter of 2001 compared
to the first quarter of 2000 as a result of declining sales volumes.


Operating Expenses and Charges ($000,000)
- -----------------------------------------
                                                   First Quarter
                                           ----------------------------
                                               2001           2000       Change

Research and development                    $      57.5      $    32.3     78%
Percentage of net revenues                          48%            28%

Marketing, general & administrative         $      25.1      $    18.1     39%
Percentage of net revenues                          21%            16%

Amortization of deferred stock compensation:
  Research and development                  $      27.9      $     3.7
  Marketing, general and administrative             0.5            0.4
                                           ----------------------------
  Total                                     $      28.4      $     4.1
                                           ----------------------------
  Percentage of net revenues                        24%             4%

Amortization of goodwill                    $      17.8      $     0.5

Costs of merger                             $         -      $     7.9

Restructuring costs                         $      19.9      $       -


    Research and Development and Marketing, General and Administrative Expenses:

Our research and  development,  or R&D,  expenses of $57.5  million in the first
quarter of 2001  increased 78% over the first quarter of 2000.  Our R&D expenses
increased  compared  to the same  period in 2000  because we  increased  our R&D
personnel headcount through our recruiting efforts and acquisitions we completed
in 2000, and because we incurred  greater service and material costs  associated
with new product development efforts.

We increased marketing, general and administrative,  or MG&A, expenses by 39% in
the first  quarter  of 2001  compared  to the first  quarter  of 2000.  Our MG&A
expenses  increased because we invested in  infrastructure,  expanded our direct
sales force, and increased our MG&A personnel  headcount  through our recruiting
efforts and acquisitions we completed in 2000.

We increased R&D and MG&A expenditures in line with the increase in our revenues
throughout 2000. In the first quarter of 2001, our relatively fixed R&D and MG&A
expenses  grew  significantly  as a percentage  of revenues as a result of a 48%
decline in net  revenues  from $231.6  million in the fourth  quarter of 2000 to
$119.9 million in the first quarter of 2001.


    Amortization of Deferred Stock Compensation:

We recorded a non-cash $28.4 million charge for  amortization  of deferred stock
compensation  in the first quarter of 2001 compared to a $4.1 million  charge in
the prior year's first quarter.  Deferred stock  compensation  charges increased
because we amortized deferred stock compensation  related to the acquisitions we
completed in 2000, and we  accelerated  the  amortization  of the deferred stock
compensation for employees terminated as a result of our restructuring.


    Amortization of Goodwill:

Non-cash  goodwill  charges  increased to $17.8  million in the first quarter of
2001 from $0.5 million in the first  quarter of 2000 as a result of the increase
in  goodwill   recorded  in  connection  with  the   acquisitions  of  Malleable
Technologies,  Inc. and Datum  Telegraphic,  Inc.  which were  accounted  for as
purchases in 2000.


    Merger Costs:

We did not incur merger  costs in the first  quarter of 2001.  We incurred  $7.9
million in merger costs as a result of the  acquisitions  of AANetcom,  Inc. and
Toucan  Technologies  Limited  in the  first  quarter  of  2000.  These  charges
consisted primarily of investment banking and other professional fees.


    Restructuring Costs:

On March 26, 2001,  we  announced  our plan to  restructure  our  operations  in
response to the decline in demand for our networking  products.  We consequently
recorded a  restructuring  charge of $19.9 million,  which included $9.4 million
relating to costs associated with a reduction in workforce of approximately  230
employees,  facility  consolidation  and  contract  settlement  charges  of $6.5
million and asset impairment charges of $4.0 million.

Workforce  reduction  charges include the cost of severance and related benefits
of  employees  affected  by the  above-noted  restructuring  activities.  Excess
facility costs represent lease termination payments and related costs.  Contract
settlement costs include  penalties  incurred due to our withdrawal from certain
purchase contracts.  We wrote down certain leasehold improvements and equipment,
which we determined to be impaired as a result of the restructuring  activities,
to their estimated fair market value less disposal costs.

Upon  conclusion  of  our  restructuring  initiatives,   we  expect  to  achieve
annualized savings of approximately $34.1 million in cost of sales and operating
expenses.  However,  these savings may not be achieved or sustained and they may
need to be reevaluated in the future.

We expect to substantially complete the restructuring plan by December 31, 2001.
We expect to pay the majority of the salary  continuance  benefits to terminated
employees and cash outlays for facilities consolidation and contract settlements
in the second and third quarter of 2001. We expect to begin  benefiting from the
cash savings of the  restructuring  in the third  quarter of 2001.  We expect to
fund restructuring expenditures from our cash and cash equivalent reserves.

While  we  currently  do  not  anticipate  the  need  for  further   significant
restructuring  and cost  cutting  measures,  we may be forced  to incur  further
restructuring charges if we believe that market conditions for our products have
worsened.


Other income, net

Net interest and other income  increased to $4.9 million in the first quarter of
2001 from $3.9 million in the first  quarter of 2000 due to higher cash balances
available to earn interest.


Gain on sale of investments

During the first quarter of 2001,  we disposed of our  investment in a privately
held company and realized a pre-tax gain of approximately $0.4 million.

During the first  quarter of 2000,  we realized a pre-tax gain of  approximately
$4.1  million as a result of our  disposition  of our  remaining  investment  in
Cypress Semiconductor.


Provision for income taxes

The provision for income taxes consists primarily of estimated taxes on Canadian
and other foreign operations.

Recently issued accounting standards.

In June 1998, the Financial  Accounting  Standards Board (FASB) issued Statement
of Financial Accounting Standard No. 133 (SFAS 133),  "Accounting for Derivative
Instruments and Hedging Activities",  which establishes accounting and reporting
standards for derivative  instruments and hedging activities.  SFAS 133 requires
the  recognition of all  derivatives on our  consolidated  balance sheet at fair
value.  We adopted  the new  Statement  effective  January 1, 2001.  The initial
adoption of SFAS 133 has not had a material effect on our financial statements.

Liquidity and Capital Resources

Cash, cash equivalents and short-term investments decreased to $343.6 million at
April 1, 2001 from $375.1 million at the end of 2000.

During  the  first  three  months of 2001,  we used  $21.8  million  in cash for
operating activities. The net loss of $63.5 million includes non-cash charges of
$13.2 million for  depreciation,  $18.4 million for amortization of intangibles,
$28.4 million for amortization of deferred stock  compensation,  a $19.9 million
restructure  reserve  charge,  and non-cash gains on disposal of investments and
capital assets of $0.3 million.

We also used cash through changes in our operating  assets and  liabilities.  We
increased inventory by $8.8 million,  and decreased accounts payable and accrued
liabilities by $43.6 million,  deferred  income by $7.8 million and income taxes
payable by $37.5  million.  We offset some of this cash usage by decreasing  our
accounts  receivables by $53.0  million.  Inventories  increased  because we are
subject to lengthy lead times from our wafer  fabrication  facilities,  and were
not able to match all of our customers' first quarter order  cancellations  with
our own  inventory  order  cancellations.  Our  deferred  revenue  and  accounts
receivable  decreased as a result of lower sales in the first quarter.  Accounts
payable  decreased  because of additional  expenditure  reductions in the latter
half of the first quarter.

Our year to date investing  activities  include the maturity of and reinvestment
in short-term  investments.  We also made investments in other companies of $1.0
million,  purchased  $16.6 million of property and equipment,  and increased net
wafer fabrication deposits by $3.3 million.

Our year to date  financing  activities  provided  $11.1  million.  We used $0.5
million for debt and lease  repayments  and received  $11.6  million of proceeds
from issuing common stock upon exercise of stock options.

Our  principal  source  of  liquidity  at  April  1,  2001  was our  cash,  cash
equivalents and short-term investments of $343.6 million. We also have a line of
credit with a bank that allows us to borrow up to $25  million  provided,  along
with other restrictions,  that we do not pay cash dividends or make any material
divestments without the bank's written consent.

We  believe  that  existing  sources of  liquidity  and  anticipated  funds from
operations  will  satisfy our  projected  working  capital,  venture  investing,
capital expenditure and wafer deposit  requirements  through the end of 2001. We
expect to spend approximately $22.5 million on new capital additions and to make
additional venture investments as opportunities arise in the balance of 2001.


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  common  stock  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,   end  networking  equipment  demand
fluctuations and our customer concentration

         Our  customers  may cancel or delay the  purchase  of our  products  to
         manage their inventory or for various other reasons

Our customers routinely build inventories of our products in anticipation of end
demand for their  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  to  supplement  their
manufacturing  capacity.  This makes forecasting  their production  requirements
difficult  and can lead to an inventory  surplus of certain of their  suppliers'
components.

Our  customers  often shift  buying  patterns as they manage  inventory  levels,
decide to use competing  products,  are acquired or divested,  market  different
products,  change production schedules or change their orders for other reasons.
If one or more  customers were to delay,  reduce or cancel  orders,  our overall
order  levels may  fluctuate  greatly,  particularly  when viewed on a quarterly
basis.

Recently, many of our customers indicated that they have accumulated significant
inventories  of our chips when compared to their own recently  reduced  shipment
forecasts and have consequently  reduced or delayed the desired shipment date of
their orders. This has materially impacted our revenues,  reduced our visibility
of future  revenue  streams and caused an increase in our inventory  levels.  We
expect  this to continue  as our  customers  consume  their  inventories  of our
products.

         If demand  for our  customers'  products  changes,  including  due to a
         downturn in the networking industry, our revenues could decline

Several of our  customers'  clients,  particularly  Competitive  Local  Exchange
Carriers and Internet  Service  Providers,  have  recently  reported  lower than
expected  demand  growth for their  services or products,  which has resulted in
poor  operating  results and  difficulty  accessing the capital  needed to build
their networks or survive to  profitability.  Many of these companies are facing
increased  competition and may become insolvent in the near future.  This, along
with symptoms of a general economic slowdown in the United States,  has affected
the end  demand  at  several  of our  significant  customers,  many of whom have
announced  large  component  inventories  and  declines  in  expected  operating
results.

In  response,  many of our  customers  and  their  contract  manufacturers  have
undertaken  expenditure and inventory reduction initiatives and have canceled or
rescheduled orders with us. These actions may continue in future periods and may
accelerate if conditions worsen for our customers.

In  addition,  while  all  of our  sales  are  denominated  in US  dollars,  our
customers' products are sold worldwide.  While the current networking  equipment
market downturn may be limited to the United States,  the networking  markets in
the rest of the world could soon  follow.  Any  decline in the world  networking
markets could  seriously  depress our customers'  order levels for our products.
This effect could be further  exacerbated if fluctuations  in currency  exchange
rates further decrease the demand for our customers' products.

         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
Lucent  Technologies  each  accounted  for  more  than  10% of our  fiscal  2000
revenues.  Both of these companies have recently  announced order shortfalls for
their products. We do not have long-term volume purchase commitments from any of
our major customers.

         Because our operating  expenses are relatively fixed in the short term,
         fluctuations  in  our  revenues  can  cause   proportionately   greater
         fluctuations in our operating results

Many  of  our  research,  development,  marketing,  general  and  administrative
expenses  are fixed from a short term  perspective,  while our revenues are not.
Thus,  if our  revenues  fluctuate,  our  profit  will  fluctuate  at a  greater
percentage than our revenues.

PMC's rapid growth and subsequent restructuring has strained our resources

Until the fourth  quarter of 2000,  PMC  experienced  a period of rapid  growth,
which placed and will continue to place a significant  strain on our  resources.
During 2000, we acquired eight  companies,  increased our employee  headcount to
1,728 from 660 at the end of 1999,  expanded our operations and facilities,  and
increased the  responsibilities of management.  In the first quarter of 2001, in
response to a decline in demand for our products, we restructured our operations
and trimmed our payroll by approximately 230 employees.  This process absorbed a
high  percentage of management  time that had to be diverted from other areas of
our operations.

While we expect  our  revenue  to  decline  in the near  term,  we may return to
historical  growth levels over the long term. If this revenue swing occurs,  our
management,  manufacturing,  product development, financial, information systems
and other  resources  may be  strained.  In addition,  our systems,  procedures,
controls  and  existing  space  may not be  adequate  to  support  growth in our
operations.

We rely on a continuous power supply to conduct our operations, and California's
current energy crisis could disrupt our operations and increase our expenses.

Our  sales  headquarters  and a  significant  proportion  of  our  research  and
development and production facilities reside in California. California is in the
midst of an energy  crisis that could  disrupt our  operations  and increase our
expenses. In the event of an acute power shortage,  that is, when power reserves
for the State of California  fall below 1.5%,  California  has on some occasions
implemented,  and may in the future  continue to  implement,  rolling  blackouts
throughout California.

We currently do not have backup  generators or alternate sources of power in the
event of a  blackout.  If  blackouts  interrupt  our power  supply,  we would be
temporarily  unable  to  continue   operations  at  our  facilities.   Any  such
interruption in our ability to continue operations at our facilities could delay
the  introduction  of new  products,  frustrate  our sales  efforts,  damage our
reputation,  harm our  ability to retain  existing  customers  and to obtain new
customers,  and could result in lost revenue,  any of which could  substantially
harm our business and results of operations.

Furthermore,  the deregulation of the energy industry  instituted in 1996 by the
California  government has caused power prices to increase.  Under deregulation,
utilities were encouraged to sell their plants, which traditionally had produced
most of California's  power, to independent  energy companies that were expected
to compete aggressively on price.  Instead, due in part to a shortage of supply,
wholesale  prices  have  skyrocketed  over the past year.  If  wholesale  prices
continue to increase, our operating expenses will likely increase.

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  outsource the manufacturing of their products to contract
manufacturers  and the  inventory  management  of our product  through our major
distributor. Many of these entities have built large inventories of our products
and  generally  represent  greater  credit  risk than our  networking  equipment
customers.

The bulk of the revenues for several of our customers  come from  companies that
have recently  reported lower than expected  demand growth for their services or
products,  such as  Competitive  Local  Exchange  Carriers and Internet  Service
Providers.  This has  materially  and adversely  affected some of our customers,
some of which may become insolvent in the near future.

We sell our products to customers around the world. Payment cycle norms in these
countries may not be consistent  with our standard  payment terms.  Thus, we may
have greater difficulty  collecting  receivables on time from customers in these
countries.  In addition,  we may be faced with greater  difficulty in collecting
outstanding   balances  due  to  the  sheer  distances  between  our  collection
facilities  and  our  customers,  and we may be  unable  to  enforce  receivable
collection in foreign nations due to their business legal systems.

If one or more of our customers delays payment or does not pay their outstanding
receivable,  our balance sheet may be materially impacted or we may be forced to
write-off the account.

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

While we  currently  are not  contemplating  new  acquisitions,  we closed eight
acquisitions in fiscal 2000. Acquiring products, technologies or businesses from
third parties is an integral 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.  Until  the year  2000,  we had not
previously  attempted to integrate several  acquisitions  simultaneously and may
not succeed in this effort.

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.

         PMC has not yet achieved revenues from some of its recent acquisitions

Some of the products we acquired  through  acquisitions in fiscal 2000 have been
incorporated  into  customer   equipment  designs  that  have  yet  to  generate
significant revenue.  These or any follow-on products may not achieve commercial
success. These acquisitions may not generate future revenues or earnings.

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  recent
acquisitions.

If our customers use our competitors' products instead of ours, suffer a decline
in demand for their products or are acquired or sold, our revenues may decline

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 that have  established  incumbents that have  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 PMC:

         As our  customers  increase  the  frequency  by which they  design next
         generation  systems  and  select the chips for those new  systems,  our
         competitors have an increased  opportunity to convince our customers to
         switch to their products, which may cause our revenues to decline

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 must  identify  and
capture  future  market  opportunities  to offset the rapid price  erosion  that
characterizes  our  industry.  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.

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

         Increasing  competition  in our industry will make it more difficult to
         earn design wins in our customer's equipment

Major domestic and international  semiconductor  companies,  such as Intel, IBM,
Agere Systems [formerly Lucent Technologies] and Motorola,  are concentrating an
increasing amount of their  substantially  greater financial and other resources
on the markets in which we participate.  This  represents a serious  competitive
threat to us.  Emerging  companies also provide  significant  competition in our
segment  of the  semiconductor  market,  while our peers  are  becoming  mature,
successful and sophisticated.

Our  competitors  include Agere  Systems,  Applied Micro  Circuits  Corporation,
Broadcom,  Conexant Systems, Cypress Semiconductor,  Dallas Semiconductor,  Exar
Corporation,   Integrated  Device  Technology,  IBM,  Infineon,  Intel,  Marvell
Technology Group, Motorola,  Multilink Technology Corporation,  Nortel Networks,
Texas Instruments, Transwitch and Vitesse Semiconductor.

Aggressive price  competition in some of the markets in which we participate has
made  competition  for design wins more  difficult.  In addition,  the increased
focus on price competition will continue to place pressure on our gross margins.

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.  In addition,  we are aware of venture-backed  companies that focus on
specific portions of our broad range of products. These companies,  individually
or collectively,  could represent  future  competition for many design wins, and
subsequent product sales.

Competition  is  particularly  strong in the market for optical  networking  and
optical  telecommunication chips, in part due to the market's growth rate, which
attracts larger competitors,  and in part due to the number of smaller companies
focused on this area. These companies,  individually or collectively,  represent
strong  competition for many design wins, and subsequent  product sales.  Larger
competitors in our market have recently  acquired or announced  plans to acquire
both publicly  traded and privately held  companies with advanced  technologies.
These acquisitions could enhance the ability of larger competitors to obtain new
business that PMC might have otherwise won.

         We must often redesign our products to meet rapidly  evolving  industry
         standards and customer  specifications,  which may delay an increase in
         our revenues

We sell  products to a market whose  characteristics  include  rapidly  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 we develop products many years before their volume production, if
         we inaccurately  anticipate our customers'  needs, our revenues may not
         increase

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.  They
often need to 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.

There have been times when we either  designed  products  that had more features
than were  demanded when they were  introduced  to the market or  conceptualized
products  that  were not  sufficiently  feature-rich  to meet  the  needs of our
customers or compete effectively against our competitors. This may happen again.

         If  the  recent  trend  of  consolidation  in the  networking  industry
         continues,  our  customers  may be acquired or sold,  which could cause
         those customers to cancel product lines or development projects and our
         revenues to decline

The networking  equipment  industry has experienced  significant merger activity
and partnership programs.  Through mergers or partnerships,  our customers could
seek to remove  redundancies in their product lines or development  initiatives.
This could lead to the  cancellation  of a product  line into which PMC products
are  designed or a  development  project on which PMC is  participating.  In the
cases of a product line cancellation, PMC revenues could be materially impacted.
In the case of a development  project  cancellation,  we may be forced to cancel
development of one or more products,  which could mean  opportunities for future
revenues from this development initiative could be lost.

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  used to develop high speed  networking  products and
related software.  The competition for such employees is intense. We, along with
our peers,  customers and other companies in the  communications  industry,  are
facing intense  competition for those employees from our peers and an increasing
number of  startup  companies  which are  emerging  with  potentially  lucrative
employee ownership arrangements.

We do not have  employment  agreements  in  place  with  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.
Recently, our stock price has declined substantially. The stock options we grant
to employees  are effective as retention  incentives  only if they have economic
value.

PMC's operating results may be impacted differently depending on which method we
use to account for acquisitions

A future acquisition could adversely affect operating  results,  particularly if
we record the acquisition as a purchase. In purchase acquisitions,  we may incur
a significant  charge for purchased in process  research and  development in the
period in which the  acquisition  is closed.  In addition,  we may  capitalize a
significant  goodwill or other  intangible  assets that would be amortized  over
their  expected  period of benefit.  The  resulting  amortization  expense could
seriously impact operating results for many years. PMC may enter into additional
purchase acquisitions in the future.

We have  accounted  for a number of our recent  mergers as pooling of interests.
If, after  completion  of these  mergers,  events occur that cause the merger to
fail to qualify for pooling of  interests  accounting  treatment,  the  purchase
method of accounting would apply.  Purchase accounting treatment would seriously
harm  the  reported  operating  results  of the  combined  company  because  the
estimated  fair value of PMC common  stock issued in the mergers is much greater
than  the  historical  net  book  value of the  assets  in each of the  acquired
company's accounts.

If the  market  does  not  accept  the  recently  developed  specifications  and
protocols on which our new products are based,  we may not be able to sustain or
increase our revenues

Some  of  our  other  recently  introduced  products  adhere  to  specifications
developed by industry groups for transmissions of data signals, or packets, over
high-speed fiber optics transmission standards. These transmission standards are
called synchronous optical network, or SONET, in North America,  and synchronous
data  hierarchy,  or  SDH,  in  Europe.  The  specifications,   commonly  called
packet-over-SONET/SDH,  may be rejected for other technologies,  such as mapping
IP directly onto fiber. In addition, we cannot be sure whether our products will
compete effectively with packet-over-SONET/SDH offerings of other companies.

A  substantial  portion  of our  business  also  relies  on  continued  industry
acceptance of asynchronous transfer mode, or ATM, products.  ATM is a networking
protocol.  While ATM has been an industry  standard  for a number of years,  the
overall ATM market has not developed as rapidly as some  observers had predicted
it would. As a result, competing communications technologies,  including gigabit
and fast  ethernet and  packet-over-SONET/SDH,  may inhibit the future growth of
ATM and our sales of ATM products.

A  significant  portion  of PMC's  revenues  relate  to sales of our  MIPS-based
processors.  If MIPS Technologies develops future generations of its technology,
we may not be able to obtain a license on reasonable terms.

MIPS  Technologies  has introduced,  and will likely continue to introduce,  new
generations   of   its   microprocessor   technology   architecture   containing
improvements  that are not covered by the technology we are currently  licensing
from MIPS  Technologies.  A significant  part of our success could depend on our
ability to develop products that incorporate those  improvements.  We may not be
able to license the technology for any new improvements  from MIPS  Technologies
on  commercially  reasonable  terms  or at all.  If we  cannot  obtain  required
licenses  from  MIPS   Technologies,   we  could  encounter  delays  in  product
development  while we attempt to develop  similar  technology,  or we may not be
able to develop, manufacture and sell products incorporating this technology.

In addition, our current microprocessor products and planned future products are
based upon the microprocessor  technology we license from MIPS Technologies.  If
we  fail  to  comply  with  any of the  terms  of its  license  agreement,  MIPS
Technologies  could  terminate  our rights,  preventing  us from  marketing  our
current and planned microprocessor products.

We  anticipate  lower  margins on mature and 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.

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.

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  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 PMC products. 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 and may be left with unwanted inventory.

In addition,  if our  suppliers  are unable or unwilling to increase  productive
capacity in line with  demand,  we may suffer  supply  shortages or be allocated
supply.   Additionally,   since  our  products  use  a  wide  range  of  process
technologies,  we may not be able to secure the specific  wafer capacity for the
specific mix of products we demand.  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.

If our silicon  wafer or other  suppliers  are unable or  unwilling  to increase
productive  capacity  in line with the  growth in demand,  we may suffer  longer
production lead times. Longer production lead times require that we forecast the
demand for our products further into the future.  Thus, a greater  proportion of
our  manufacturing  orders  will be  based  on  forecasts,  rather  than  actual
customers  orders.  This increases the likelihood of forecasting  errors.  These
forecasting  errors  could  lead to excess  inventory  in certain  products  and
insufficient  inventory in others,  which could  adversely  affect our operating
results.

         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
supply most 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  customers.  We have less  control  over  delivery  schedules,  assembly
processes,  quality  assurances and costs than competitors that do not outsource
these tasks.

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.

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 of 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.

         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. In addition,  a number of the countries in which we
have sales offices have a history of imposing exchange rate controls. This could
make it difficult to withdraw the foreign currency denominated assets we hold in
these countries.

We are defendants in several  outstanding  legal  proceedings about which we are
unable to assess our  exposure and which could  become  significant  liabilities
upon judgment.

We are  defendants  in a number of legal  proceedings  that we believe will have
immaterial  consequences  or are unable to assess our level of  exposure.  These
proceedings  could  create a  material  charge to our  operating  results in the
future if our  exposure  increases  or 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, as well as 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.  Until December of 1997, we indemnified our customers up
to the dollar amount of their  purchases of our products  found to be infringing
on technology owned by third parties.  Customers may also make claims against us
with respect to infringement.

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.

Securities we issue to fund our operations could dilute your ownership

We may need 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 we or you will find favorable.  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.  This could
continue as we or our competitors announce new products,  our customers' results
fluctuate,  conditions in the  networking or  semiconductor  industry  change or
investors change their sentiment toward technology stocks.

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.


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.


         Short-term Investments:

We maintain a short-term  investment  portfolio of various  holdings,  types and
maturities  of less than one  year.  To  minimize  credit  risk the  short  term
investments are diversified and generally  consist of either  Commercial  Paper,
rated P-1 by Moody's and A-1 or higher by Standard  and Poor's,  or Auction Rate
Preferred's with a rating of Aaa/AAA.  These securities are generally classified
as held to maturity and accordingly are recorded on the balance sheet at cost.

Investments  in both fixed rate and floating rate interest  earning  instruments
carry a degree of interest rate 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. 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  which have  declined in market  value
because of changes in interest rates.

Our investments are made in accordance with an investment policy approved by our
Board of Directors.  Under this policy,  all short term investments must be made
in investment grade securities with original maturities of less than one year at
the time of acquisition.

We do not attempt to reduce or  eliminate  our  exposure  to interest  rate risk
through the use of derivative financial instruments due to the short-term nature
of the investments.

Based on a sensitivity  analysis performed on the financial  instruments held at
April 1, 2001 that are sensitive to changes in interest rates, the fair value of
our short-term  investment  portfolio would not be significantly  impacted by an
immediate  hypothetical  parallel  shift in the yield curve of plus or minus 50,
100 or 150 basis points.


         Other Investments:

Other  investments  at April 1, 2001  include a  minority  investment  in Sierra
Wireless Inc., a publicly traded company.  This investment is subject to certain
resale  restrictions.  One half of the  investment  will be released  from these
restrictions  in May 2002 and is  recorded  on our  Balance  Sheet at cost.  The
second  half will be release  from its resale  restrictions  in May 2001 and has
been classified as available for sale.  Consequently,  the latter 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 tax.

We also hold an investment of approximately  85,000 shares of Intel Corporation,
which we acquired in the first  quarter of 2001 on the sale of our interest in a
private corporation.  We may not trade these unregistered shares until the first
quarter of 2002.

Our  investments in Sierra Wireless and Intel shares are subject to considerable
market price volatility and are additionally  risky due to resale  restrictions.
We may lose some or all of our investment in these shares.

Our other  investments  also include  numerous  investments  in  privately  held
companies  which are carried on our Balance Sheet at cost.  Our  investments  in
private  companies are inherently risky as they typically consist of investments
in companies  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.  Accordingly,  we could lose our
entire investment in these companies.


         Foreign Currency

We  generate a  significant  portion  of our  revenues  from sales to  customers
located  outside of the United States  including  Canada,  Europe and 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.

Our sales and  corresponding  receivables  are made  primarily in United  States
dollars.  Through our  operations in Canada and elsewhere  outside of the United
States,   we  incur  research  and  development,   customer  support  costs  and
administrative expenses in Canadian and other local 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 the results of operations 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.  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.

The  purpose of our foreign  currency  risk  management  policy is to reduce the
effect of exchange rate  fluctuations  on our results of operations.  Therefore,
while our foreign  currency  risk  management  policy may reduce our exposure to
losses  resulting from unfavorable  changes in currency  exchange rates, it also
reduces or eliminates our ability to profit from  favorable  changes in currency
exchange rates.

Occasionally, we may not be able to correctly forecast our operational needs. If
our  forecasts  are  overstated  or  understated   during  periods  of  currency
volatility,  we could experience  unanticipated currency gains or losses. At the
end of the first quarter of 2001, we did not have  significant  foreign currency
denominated  net asset or net  liability  positions,  and we had no  outstanding
foreign exchange contracts.



Part II - Other Information

Item 2.      CHANGES IN SECURITIES AND USE OF PROCEEDS


         Shareholders' rights plan

On April 26, 2001,  PMC adopted a  stockholders'  rights plan.  Under the rights
plan,  the  Company  will issue a dividend of one right for each share of common
stock of the Company held by  stockholders  of record as of May 25,  2001.  Each
right will initially entitle  stockholders to purchase a fractional share of the
Company's preferred stock for $325.00.  However,  the rights are not immediately
exercisable  and will become  exercisable  only upon the  occurrence  of certain
events.  Upon occurrence of these events,  unless redeemed for $0.001 per right,
the rights  will  become  exercisable  by  holders,  other than rights held by a
potential  unsolicited  third party  acquirer,  for shares of the Company or for
shares  of the  third  party  acquirer  having  a value  of  twice  the  right's
then-current exercise price.

For further details please see the Current Report on Form 8-K filed on April 30,
2001, attached hereto as an exhibit under Item 6(b).


Item 6.      EXHIBITS AND REPORTS ON FORM 8-K

              (a)  Exhibits -

                   -   3.1  Restated Certificate of Incorporation

                   -   3.2  Bylaws, as amended

                   -   4.6  Preferred Stock Rights Agreement,  dated as of April
                            26,  2001,  between  PMC-Sierra,  Inc.  and American
                            Stock Transfer and Trust Company.2

                   -  11.1  Calculation of earnings per share 3



              (b)  Reports on Form 8-K -

                   -  A Current  Report on Form 8-K was filed on April 30,  2001
                      to  disclose  that the Board of  Directors  of  registrant
                      approved  the   adoption  of  a  Preferred   Stock  Rights
                      Agreement.



SIGNATURES

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 16, 2001          /S/  John W. Sullivan
         ------------          -------------------------------------------------
                               John W. Sullivan
                               Vice President, Finance (duly authorized officer)
                               Principal Accounting Officer



- --------
1 Incorporated  by reference from Exhibit 3.2 filed with the  Registrant's  Form
  8-A on May 14, 2001.

2 Incorporated  by reference from Exhibit 4.6 filed with the  Registrant's  Form
  8-A on May 14, 2001.

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