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Timing of Switchover
by Means of CKS1
No.
and CKS0 Bits
4
Switching from high
to high
Notes: *1 Includes switching from low to stop, and from stop to low.
*2 Includes switching from stop to high.
*3 Includes switching from high to stop.
*4 Generated on the assumption that the switchover is a falling edge; TCNT is
incremented.
13.6.6
Interrupts and Module Stop Mode
If module stop mode is entered when an interrupt has been requested, it will not be possible to
clear the CPU interrupt source or DMAC and DTC activation source. Interrupts should therefore
be disabled before entering module stop mode.
TCNT Clock Operation
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
N
N+1
N+2
CKS bit write
653
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