发明名称 SEMICONDUCTOR INTEGRATED CIRCUIT, MICROCOMPUTER, AND THEIR OPERATION MODE SWITCHING METHODS
摘要 PROBLEM TO BE SOLVED: To solve the problem wherein operating mode setting conditions cannot be changed, for prior to shipment and after shipment of products, in the conventional settings for operating modes. SOLUTION: This semiconductor integrated circuit is equipped with a rewritable nonvolatile memory, an operation mode setting terminal to which an operation mode setting signal is to be input, and a first counter for performing counting operation, on the basis of the operation setting signal. The nonvolatile memory stores a first pulse number set value, and switching of operation mode is executed, when the counted value of the first counter and the first pulse number set value agree. COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2008076173(A) 申请公布日期 2008.04.03
申请号 JP20060254495 申请日期 2006.09.20
申请人 NEC ELECTRONICS CORP 发明人 ISHIKAWA TATSUYA
分类号 G01R31/28;G01R31/3185 主分类号 G01R31/28
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