Fujitsu FR81S User Manual
CHAPTER 30: POWER CONSUMPTION CONTROL
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : POWER CONSUMPTION CONTROL
FUJITSU SEMICONDUCTOR CONFIDENTIAL
33
5.5.1. Configuration of Watch Mode with power-shutdown
The configuration of watch mode with power-shutdown is described below.
Before activating watch mode with power-shutdown, set and control the followings.
(1) Set the state of external pins in watch mode with power-shutdown with the bit1:SLVL1 in the STBCR
register.
⋅
When setting bit1:SLVL1="0" in the STBCR register, the external pins hold previous state.
⋅
When setting bit1:SLVL1="1" in the STBCR register, the external pins become high impedance.
Pins whose state is controlled differ according to product types. See "APPENDIX".
MB91520 Series
MN705-00010-1v0-E
1120