发明名称 |
MULTI-MODE SMART CARD, SYSTEM AND ASSOCIATED METHODS |
摘要 |
A multi-mode IC is provided for operating in a first mode such as an ISO mode in accordance with International Standards Organization 7816 (ISO 7816) protocol, and a second, non-ISO mode, such as a USB mode in accordance with Universal Serial Bus (USB) protocol. The multi-mode IC is preferably in a smart card and includes a microprocessor and an external interface. The external interface comprises a voltage supply pad, a ground pad, a first set of pads for the first mode, and a second set of pads for the second mode. The first set of pads preferably include a reset pad, a clock pad an an input/output pad in accordance with the ISO 7816 protocol, and may also include a variable supply voltage pad in accordance with the ISO 7816 protocol. The IC further includes a mode configuration circuit for detecting a mode condition on one pad of the first set of pads, and configuring the IC in the ISO mode or the non-ISO mode depending on the result. Once the IC is configured ina particular mode, it will operate in only that mode until the next power-on reset sequence.
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申请公布号 |
WO0231762(A1) |
申请公布日期 |
2002.04.18 |
申请号 |
WO2001US27134 |
申请日期 |
2001.08.30 |
申请人 |
STMICROELECTRONICS, INC.;FRUHAUF, SERGE, F.;POMET, ALAIN, CHRISTOPHE;LEYDIER, ROBERT, ANTOINE |
发明人 |
FRUHAUF, SERGE, F.;POMET, ALAIN, CHRISTOPHE;LEYDIER, ROBERT, ANTOINE |
分类号 |
G06F13/10;G06K17/00;G06K19/07;(IPC1-7):G06K19/07 |
主分类号 |
G06F13/10 |
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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