Patent ID: 7895404
Filing Date: 2011-02-22
Classification: G06F

Abstract:
1. A method comprising: receiving one or more signals indicating a memory access; reading a current address; determining if the current address is within a protected area of a memory map, the protected area defined by a base address, a limit address, and a non-zero offset; if the current address is within the protected area, setting an access flag; if the current address is not within the protected area, clearing the access flag; determining if the one or more signals indicate a fetch memory access; if the one or more signals indicate a fetch memory access and the access flag is set, setting a protected fetch flag; if the one or more signals indicate a fetch memory access and the access flag is cleared, clearing the protected fetch flag; determining if the one or more signals indicate a data memory access; and if the one or more signals indicate a data memory access: