Power-Down Modes; Overview - Hitachi SH7709S Hardware Manual

8.1

Overview

In the power-down modes, all CPU and some on-chip peripheral module functions are halted. This
lowers power consumption.
8.1.1

Power-Down Modes

The SH7709S has the following power-down modes and function:
1. Sleep mode
2. Standby mode
3. Module standby function (TMU, RTC, SCI, UBC, DMAC, DAC, ADC, SCIF, and IrDA on-
chip peripheral modules)
4. Hardware standby mode
Table 8.1 shows the transition conditions for entering the modes from the program execution state,
as well as the CPU and peripheral module states in each mode and the procedures for canceling
each mode.
Section 8 Power-Down Modes
185