The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2008
Filed:
May. 29, 2003
William C. Moyer, Dripping Springs, TX (US);
Afzal M. Malik, Austin, TX (US);
William C. Moyer, Dripping Springs, TX (US);
Afzal M. Malik, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A method and apparatus for determining access protection () includes receiving a plurality of access requests () corresponding to a plurality of masters (), determining access permissions (), providing state information (), determining access permissions () based on the access request (), and selectively modifying the access permissions based on the state information (). The state information () may relate to debug operation, operation from unsecure or unverified memories, memory programming, direct memory access operation, boot operation, software security verification, security levels, security monitor operation, operating mode, fault monitor, external bus interface, etc ().