Patent ID: 7996726
Filing Date: 2011-08-09
Classification: G01R,G06F,G11C

Abstract:
1. An evaluation method that is implemented in a semiconductor storage device, the semiconductor storage device including a nonvolatile semiconductor memory; a storage unit that stores therein a control program for controlling access to the nonvolatile semiconductor memory; and a control unit that externally performs data communication via an ATA interface and controls access to the nonvolatile semiconductor memory according to the control program, the evaluation method being implemented to evaluate reliability of the nonvolatile semiconductor memory with respect to data writing and data reading, the evaluation method comprising: writing, while power is being supplied to the semiconductor storage device, a test program and the control program into the storage unit, the test program being written to control execution of an evaluation test performed for evaluating the reliability of the nonvolatile semiconductor memory and generate a simulated access command identical to an access command input externally via the ATA interface for accessing the nonvolatile semiconductor memory; generating the simulated access command according to the test program; and controlling access to the nonvolatile semiconductor memory according to the previously generated simulated access command in the storage unit.