EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation by reference in this registration statement on Form S-3 of our reports dated March 13, 1998 and December 9, 1998 included in Level One Communications, Incorporated's Form 10-K for the year ended December 28, 1997 and the Form 8-K/A filed on December 16, 1998, respectively, and to all references to our Firm included in this registration statement. Arthur Andersen LLP By: /s/ ARTHUR ANDERSEN LLP ---------------------------- Sacramento, California December 16, 1998