| 摘要 |
PROBLEM TO BE SOLVED: To resolve operation instability of a processor resulting from non-supply of an output voltage setting end signal due to rechanging when rechanging of a set voltage specific code is stopped.SOLUTION: A power supply control device includes first and second interfaces 21, 22, a control register 23, a control unit 24 and a D/A converter 25. The register 23 includes a first register 230 which stores input digital information of the converter 25. After the first voltage specific data is stored in the register 230 in a first operation mode and the second voltage specific data is stored in the register 230 in a second operation mode, the unit 24 stops storage of re-supplied data in the register 230 when the first voltage specific data is supplied to the first interface 21 in the first operation mode again. When storage is stopped, the first interface 21 supplies an output voltage setting end signal ALERT to a processor 1. |
