| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem such as a cost increase since an inexpensive cache memory cannot be used because a processing time is necessary for monitoring processing, and a processing speed is lowered due to being unable to be formed as a light back cash. SOLUTION: A common bus terminal 11a of an CPU 11 is connected to a global common bus 15b, and a bus terminal of a local cache memory 12 is connected to a global uncommon bus 15a. The global common bus is connected to an external common memory 19b storing common information used by the CPU, and the global uncommon bus 15a is connected to an external uncommon memory 19a storing uncommon information used by the CPU. COPYRIGHT: (C)2008,JPO&INPIT
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