发明名称 |
Semiconductor memory card, and program for controlling the same |
摘要 |
A semiconductor memory card that has a sufficient storage capacity when an EC application writes data to a storage is provided. A usage area for the EC application in an EPPROM 3 in a TRM 1 is expanded. The expansion is such that a partition generated in a flash memory 2 outside the TRM 1 is assigned to the EC application while a partition table is allocated in the internal EEPROM 3. Because the partition table is in the TRM 1, only a CPU 7 in the TRM 1 is able to access the generated partition table. Secrecy of stored contents increases because the access to the expanded area is limited to the CPU 7 in the TRM 1.
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申请公布号 |
US7526625(B2) |
申请公布日期 |
2009.04.28 |
申请号 |
US20050532988 |
申请日期 |
2005.04.28 |
申请人 |
PANASONIC CORPORATION |
发明人 |
EBARA HIROMI;KAWANO SHINJI;NAKABE FUTOSHI |
分类号 |
G06F12/00;G06F9/445;G07F7/10 |
主分类号 |
G06F12/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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