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Section 5 Power-Down Modes
5.9
Module Standby Mode
5.9.1
Setting Module Standby Mode
Module standby mode is set for individual peripheral functions. All the on-chip peripheral
modules can be placed in module standby mode. When a module enters module standby mode,
the system clock supply to the module is stopped and operation of the module halts. This state is
identical to standby mode.
Module standby mode is set for a particular module by setting the corresponding bit to 0 in clock
stop register 1 (CKSTPR1) or clock stop register 2 (CKSTPR2). (See table 5.5.)
5.9.2
Clearing Module Standby Mode
Module standby mode is cleared for a particular module by setting the corresponding bit to 1 in
clock stop register 1 (CKSTPR1) or clock stop register 2 (CKSTPR2). (See table 5.5.)
Following a reset, clock stop register 1 (CKSTPR1) and clock stop register 2 (CKSTPR2) are both
initialized to H'FF.
Rev. 6.00 Aug 04, 2006 page 152 of 680
REJ09B0145-0600
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