Freescale Semiconductor, Inc.
July 16, 1999
GENERAL RELEASE SPECIFICATION
SECTION 6
LOW POWER MODES
There are three modes of operation that reduce power consumption:
•
•
•
Stop mode
Wait mode
Halt mode
The WAIT and STOP instructions provide two power saving modes by stopping
various internal modules and/or the on-chip oscillator. The STOP and WAIT
instructions are not normally used if the COP Watchdog Timer is enabled. A mask
option is provided to convert the STOP instruction to a HALT, which is a WAIT-like
instruction that does not halt the COP Watchdog Timer but has a recovery delay.
The flow of the STOP, HALT, and WAIT modes are shown in Figure 6-1.
LOW POWER MODES
REV 2.1
6-1
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