| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cache memory capable of preventing the increase of a chip area as much as possible and improving reliability, and to provide a microprocessor equipped with the cache memory. <P>SOLUTION: A cache memory includes: a memory cell having a plurality of cache memories, a data comparator buffer; a write circuit for receiving a write request, and for writing data based on the write request in the cache line and the data comparison buffer; a comparator circuit for reading the data written in the cache line and the data comparison buffer by the write circuit, and for comparing those data, and for judging whether or not there is any difference between the both data; and a setting circuit for setting the data written in the cache line as invalid when it is judged that there is any difference. <P>COPYRIGHT: (C)2007,JPO&INPIT |
