UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





Form 10-K/A

Amendment No. 1

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended September 28, 2012

Commission file
number: 001-31650





MINDSPEED TECHNOLOGIES, INC.

(Exact name of registrant as specified in its charter)



|                                                               |  |                                     
|-------------------------------------------------------------- |  | ------------------------------------
|Delaware                                                       |  | 01-0616769                          
|(State of incorporation)                                       |  | (I.R.S. Employer Identification No.)
|                                                               | 
|4000 MacArthur Boulevard, East Tower
Newport Beach, California |  | 92660-3095                          
|(Address of principal executive offices)                       |  | (Zip code)                          

Registrants telephone number, including area code:

(949) 579-3000

Securities registered pursuant to Section 12(b) of the Act:



|                                                                                              |  |                                            
|--------------------------------------------------------------------------------------------- |  | -------------------------------------------
|(Title of Each Class)                                                                         |  | (Name of Each Exchange on Which Registered)
|Common Stock $0.01 par value per share
(including associated Preferred Share Purchase Rights) |  | The NASDAQ Stock Market LLC                

Securities registered pursuant to Section 12(g) of the Act:

None





Indicate by
check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes   ̈    No  x

Indicate by check mark if the registrant is not required to file reports pursuant
to Section 13 or Section 15(d) of the Act.    Yes   ̈    No  x

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 shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past
90 days.    Yes  x    No   ̈

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every
Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files).    Yes  x    No   ̈

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this
chapter) is not contained herein, and will not be contained, to the best of registrants knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K.    x



Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of large accelerated
filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act. (Check one):



|                        |  |                                                  |  |                           |  |  
|----------------------- |  | ------------------------------------------------ |  | ------------------------- |  | -
|Large accelerated filer |  |  ̈                                                |  | Accelerated filer         |  | x
|                        |  |                                                  | 
|Non-accelerated filer   |  |  ̈  (Do not check if a smaller reporting company) |  | Smaller reporting company |  |  ̈

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the
Exchange Act).    Yes   ̈    No  x

The aggregate market value of the registrants voting and non-voting stock held by non-affiliates of the registrant as of the end of
its most recently completed second fiscal quarter was approximately $249.7 million. Shares held by each officer and director and each person owning more than 10% of the outstanding voting and non-voting stock have been excluded from this
calculation because such persons may be deemed to be affiliates of the registrant. This determination of potential affiliate status is not necessarily a conclusive determination for other purposes. Shares held include shares of which certain of such
persons disclaim beneficial ownership.

The number of outstanding shares of the registrants Common Stock as of
November 23, 2012 was 41,725,343.





Documents Incorporated by Reference

Portions of the Registrants Proxy Statement for the 2013 Annual Meeting of Stockholders, to be filed pursuant to Regulation 14A within 120 days after the end of the 2012 fiscal year, are
incorporated by reference into Part III of this Form 10-K/A.









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EXPLANATORY NOTE

Mindspeed Technologies, Inc. (the Company) is filing this Amendment No. 1 on Form 10-K/A (Amendment
No. 1) to its Annual Report on Form 10-K for the fiscal year ended September 28, 2012, which was originally filed with the Securities and Exchange Commission on December 12, 2012 (the Original Filing), to amend
Item 15, Exhibits and Financial Statement Schedules, in order to correct a clerical error with the filing of Exhibit 23, Consent of Independent Registered Public Accounting Firm, and file the correct Exhibit 23 that had been issued to us by the
Independent Registered Public Accounting Firm. Accordingly, this Amendment No. 1 consists solely of the preceding cover page, this explanatory note, the list of exhibits filed with this Amendment No. 1, and the signature page. Other than
as noted herein, this Amendment No. 1 does not modify or update any disclosures made in the Original Filing or reflect events that may have occurred subsequent to the filing date of the Original Filing.

EXHIBITS FILED WITH THIS AMENDMENT NO. 1



|           |  |                                                                                                    
|---------- |  | ---------------------------------------------------------------------------------------------------
|ExhibitNo. |  | Exhibit Description                                                                                
|           | 
|23         |  | Consent of independent registered public accounting firm.                                          
|           | 
|31.1       |  | Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
|           | 
|31.2       |  | Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.



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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this Amendment No. 1 to Annual Report on Form 10-K/A to be signed on
its behalf by the undersigned, thereunto duly authorized.



|                        |  |  |  |                              |  |                        
|----------------------- |  |  |  | ---------------------------- |  | -----------------------
|                        |  |  |  | MINDSPEED TECHNOLOGIES, INC.
|                        |  |  | 
|                        |  |  |  | By:                          |  | /S/ RAOUF Y. HALIM     
|Date: December 14, 2012 |  |  |  |                              |  | Raouf Y. Halim         
|                        |  |  |  |                              |  | Chief Executive Officer



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EXHIBIT INDEX



|     |  |                                                                                                    
|---- |  | ---------------------------------------------------------------------------------------------------
|     | 
|23   |  | Consent of independent registered public accounting firm.                                          
|     | 
|31.1 |  | Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
|     | 
|31.2 |  | Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.