Patent ID: 8015448
Filing Date: 2011-09-06
Classification: G01R,G06F,G11C

Abstract:
1. A storage controller comprising: a first controller, wherein the first controller includes a memory module; a test access port controller in communication with the first controller, the test access port controller configured to control a built in self-test operation on the memory module of the first controller; and a register configured to store a first instruction, wherein in response to the storage controller detecting a test access port interface being accessible to the storage controller, the test access port controller is configured to control the built in self-test operation on the memory module of the first controller by having either (i) a second instruction sent from the test access port controller to the first controller or (ii) the first instruction sent from the register to the first controller, wherein the first controller is configured to perform the built in self-test operation on the memory module in response to having received the first instruction or having received the second instruction.