| 摘要 |
PROBLEM TO BE SOLVED: To prevent data from being lost while power consumption is suppressed and improve the suppression effect of power consumption.SOLUTION: A retention FF circuit 28 of a register 26 includes: a data holding section 32 that holds data; and a retention section 34 in which data in the data holding section 32 is temporarily stored. When power consumption is suppressed, a power shutdown switch 40 operates and therefore the supply of a power supply voltage VDD to the data holding section is stopped. In addition, if a power shutdown switch 42 is operated when the power consumption is suppressed, power supply to the retention section is stopped. |
