Haynes Beffel & Wolfeld LLP
Configurable security memory region
A memory device comprises a memory array with I/O path and security circuitry coupled to the I/O path of the memory array. The memory device comprises control circuitry, responsive to configuration data, to invoke the security circuitry. The memory device comprises a configuration store, storing the configuration data accessible by the control circuitry to specify location and size of a security memory region in the memory array. Responsive to an external command and the configuration data, the control circuitry can be configured to invoke the security circuitry on an operation specified in the external command in response to accesses into the security memory region, or to not invoke the security circuitry in response to accesses to outside the security memory region.
MACRONIX INTERNATIONAL CO., LTD.
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Kuen-Long Yu-Chen Chin-Hung Ken-Hui
Chang Wang Chang Chen