Patent ID: 8161225
Filing Date: 2012-04-17
Classification: G06F

Abstract:
1. A semiconductor memory card which is used in connecting to an access device, comprising: a host interface which transmits a control signal and data to the access device and receives a signal from the access device; a nonvolatile memory in which a plurality of continuous sectors are grouped into an erase block as a minimum unit for data erasing and which includes an address management information area and user data area; a memory controller which controls erasing, writing and reading of data for said nonvolatile memory; a control part which controls said semiconductor memory card on the basis of the control signal acquired via said interface; wherein said semiconductor memory card further comprises; a memory for a card information storage including a card information storage part which stores at least first information on physical characteristics in said semiconductor memory card, second information on an access condition at the time when said access device accesses said semiconductor memory card, and third information on an access rate of said semiconductor memory card when said access device performs access on said access condition; wherein said second information includes a minimum sequential area size for sequential access.