HD64F3048F16 Datasheet, PDF (667/903 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 20 Power-Down State
Section 20 Power-Down State
20.1 Overview
The H8/3048B Group has a power-down state that greatly reduces power consumption by halting
the CPU, 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, DMAC, refresh controller,
and A/D converter.
Table 20.1 indicates the methods of entering and exiting the power-down modes and module
standby mode, and gives the status of the CPU and on-chip supporting modules in each mode.
Rev. 3.00 Sep 27, 2006 page 639 of 872
REJ09B0325-0300