| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve an optimal low power consumption according to an execution instruction code and an operation mode in a microprocessor. SOLUTION: This microprocessor is provided with a second PLA 950 exclusive for a specific instruction to be frequently used in a slow mode separately from a first PLA 960 in a normal operation, and when an instruction code and a state signal to be executed in the slow mode match with data set in the second PLA, the operation of the first PLA is stopped, and simultaneously the microprocessor is controlled according to a microcode outputted from the second PLA.</p> |
