发明名称 |
Memory card and data rewriting method |
摘要 |
A controller 3 of a memory card is a provided with a command decoding circuit 6 for decoding commands issued by a host HT, a command enable register 8 in which the validity or invalidity of the received command, and a command detection signal generating circuit 7 for detecting a valid command on the basis of the result of decoding by the command decoding circuit 6 and a value set by the command enable register 8. If the command enable register 8 receives a validly set command, the command detection signal generating circuit 7 will supply a detection signal to a control unit 4 to execute processing prescribed for each command the command enable register 8 receives an invalidly set command, no detection signal will be supplied, and the command will be ignored.
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申请公布号 |
US2004236909(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
US20040486651 |
申请日期 |
2004.02.12 |
申请人 |
SHIKATA ATSUSHI;KATAYAMA KUNIHIRO;MATSUMOTO MASATO;IZAWA KAZUTO;KANAMORI MOTOKI |
发明人 |
SHIKATA ATSUSHI;KATAYAMA KUNIHIRO;MATSUMOTO MASATO;IZAWA KAZUTO;KANAMORI MOTOKI |
分类号 |
G06K19/07;G06F12/00;G06F13/16;G06K17/00;(IPC1-7):G06F12/00 |
主分类号 |
G06K19/07 |
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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