Section 9 Power-Down Modes; Overview; Types Of Power-Down Modes - Hitachi SH7751 Hardware Manual

9.1

Overview

In the power-down modes, some of the on-chip peripheral modules and the CPU functions are
halted, enabling power consumption to be reduced.
9.1.1

Types of Power-Down Modes

The following power-down modes and functions are provided:


Sleep mode


Deep sleep mode


Standby mode


Hardware standby mode


Module standby function (TMU, RTC, SCI/SCIF, and DMAC on-chip peripheral modules)
Table 9.1 shows the conditions for entering these modes from the program execution state, the
status of the CPU and peripheral modules in each mode, and the method of exiting each mode.

Section 9 Power-Down Modes

Rev. 3.0, 04/02, page 215 of 1064