H8-3022 Datasheet, PDF (535/712 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer

17. Power-Down State
Section 17 Power-Down State
17.1 Overview
This LSI has a power-down state that greatly reduces power consumption by halting CPU
functions, and a module standby function that reduces power consumption by selectively halting
on-chip modules. The power-down state includes the following three modes:
• Sleep mode
• Software standby mode
• Hardware standby mode
The module standby function can halt on-chip supporting modules independently of the power-
down state. The modules that can be halted are the ITU, SCI0, SCI1, and A/D converter.
Table 17.1 indicates the methods of entering and exiting these power-down modes and the status
of the CPU and on-chip supporting modules in each mode.
Rev.2.00 Mar. 22, 2007 Page 511 of 684
REJ09B0352-0200