MC68HC705JP7 Datasheet, PDF (173/242 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Programmable Timer
Timer Operation during Wait Mode
11.9 Timer Operation during Wait Mode
During wait mode, the 16-bit timer continues to operate normally and
may generate an interrupt to trigger the MCU out of wait mode.
11.10 Timer Operation during Stop Mode
When the MCU enters stop mode, the free-running counter stops
counting (the internal processor clock is stopped). It remains at that
particular count value until stop mode is exited by applying a low signal
to the IRQ/V_PP pin, at which time the counter resumes from its stopped
value as if nothing had happened. If stop mode is exited via an external
reset (logic low applied to the RESET pin), the counter is forced to
$FFFC.
If a valid input capture edge occurs during stop mode, the input capture
detect circuitry will be armed. This action does not set any flags or wake
up the MCU, but when the MCU does wake up there will be an active
input capture flag (and data) from the first valid edge. If the stop mode is
exited by an external reset, no input capture flag or data will be present
even if a valid input capture edge was detected during stop mode.
11.11 Timer Operation during Halt Mode
When the MCU enters halt mode, the functions and states of the 16-bit
programmable timer are the same as for wait mode described in
11.9 Timer Operation during Wait Mode.
MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
Programmable Timer
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