MC68HC05P18 Datasheet, PDF (97/144 Pages) Freescale Semiconductor, Inc – Advance Information

Freescale Semiconductor, Inc.
16-Bit Timer
Timer Operation During Wait and Halt Modes
10.8 Timer Operation During Wait and Halt Modes
During wait and halt modes, the 16-bit timer continues to operate
normally and may generate an interrupt to trigger the MCU out of wait
and halt modes.
10.9 Timer Operation During Stop Mode
When the MCU enters stop mode, the free-running counter stops
counting (the PH2 clock is stopped). It remains at that particular count
value until the stop mode is exited by applying a low signal to the IRQ
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 at the TCAP pin 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 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.
MC68HC(8)05P18 — Rev. 2.0
MOTOROLA
16-Bit Timer
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Advance Information
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