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Rev. 5.00, 09/03, page 181 of 760
Section 8 Power-Down Modes
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.