XC68HC705JJ7 Motorola, XC68HC705JJ7 Datasheet - Page 173

• Manufacturer Part Number: XC68HC705JJ7
• Description: MICROCONTROLLER
• Manufacturer: Motorola

11.9 Timer Operation during Wait Mode
11.10 Timer Operation during Stop Mode
11.11 Timer Operation during Halt Mode
MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
During wait mode, the 16-bit timer continues to operate normally and
may generate an interrupt to trigger the MCU out of wait 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
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.
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
PP
Programmable Timer
pin, at which time the counter resumes from its stopped
Mode.
Timer Operation during Wait Mode
Programmable Timer
Advance Information
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