Datasheet

Table Of Contents
Section 22 Power-Down Modes
Page 684 of 846 REJ09B0140-0900 Rev. 9.00
Sep 16, 2010
H8S/2215 Group
22.1 Register Descriptions
The registers relating to the power down mode are shown below.
For details on the system clock control register (SCKCR), refer to section 21.1.1, System Clock
Control Register (SCKCR).
Standby control register (SBYCR)
System clock control register (SCKCR)
Module stop control register A (MSTPCRA)
Module stop control register B (MSTPCRB)
Module stop control register C (MSTPCRC)
22.1.1 Standby Control Register (SBYCR)
SBYCR performs software standby mode control.
Bit Bit Name Initial Value R/W Description
7 SSBY 0 R/W Software Standby
This bit specifies the transition mode after executing the
SLEEP instruction
0: Shifts to sleep mode when the SLEEP instruction
is executed
1: Shifts to software standby mode when the SLEEP
instruction is executed
This bit does not change when clearing software standby
mode by using external interrupts and shifting to normal
operation. 0 should be written to this bit for clearing.