h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 823

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

For operating modes after the reset state is cancelled, this LSI has not only the normal program
execution state but also seven power-down modes in which power consumption is significantly
reduced. In addition, there is also module stop mode in which reduced power consumption can be
achieved by individually stopping on-chip peripheral modules.
LPWS263A_000020020300
Medium-speed mode
System clock frequency for the CPU operation can be selected as /2, /4, /8, /16,or /32.
Subactive mode
The CPU operates based on the subclock and on-chip peripheral modules other than TMR_0,
TMR_1, WDT_0, and WDT_1 stop operating.
Sleep mode
The CPU stops but on-chip peripheral modules continue operating.
Subsleep mode
The CPU and on-chip peripheral modules other than TMR_0 , TMR_1, WDT_0, and WDT_1
stop operating.
Watch mode
The CPU and on-chip peripheral modules other than WDT_1 stop operating.
Software standby mode
Clock oscillation stops, and the CPU and on-chip peripheral modules stop operating.
Hardware standby mode
Clock oscillation stops, and the CPU and on-chip peripheral modules enter reset state.
Module stop mode
Independently of above operating modes, on-chip peripheral modules that are not used can be
stopped individually.
Section 27 Power-Down Modes
Rev. 3.00 Jan 25, 2006 page 771 of 872
Section 27 Power-Down Modes
REJ09B0286-0300