SH7604 Datasheet, PDF (401/633 Pages) Hitachi Semiconductor – Hardware Manual

Section 14 Power-Down Modes
14.1 Overview
The SH7604 has a module standby function (which selectively halts operation of some on-chip
peripheral modules), a sleep mode (which halts CPU function), and a standby mode (which halts
all functions).
14.1.1 Power-Down Modes
In addition to the sleep mode and standby mode, the SH7604 also has a third power-down mode,
the module standby function, which halts the DMAC, multiplication unit, division unit, free-
running timer, and SCI on-chip peripheral modules.
Table 14.1 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.
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