Section 21 Power-Down State; Overview - Hitachi H8/3062 Hardware Manual

Single-chip microcomputer h8/3062 series; h8/3062b series; h8/3062f-ztat series; h8/3064f-ztat series

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Section 21 Power-Down State

The H8/3062 Series 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 16-bit timer, 8-bit timer, SCI0, SCI1, and A/D

Table 21.1 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.