Datasheet

Section 12 8-Bit Timers
Rev. 4.00 Sep 27, 2006 page 376 of 1130
REJ09B0327-0400
No.
Timing of Switchover
by Means of CKS1
and CKS0 Bits TCNT Clock Operation
3 Switching from high
to low
*
3
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
CKS bit rewrite
N N + 1 N + 2
*
4
4 Switching from high
to high
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
CKS bit rewrite
N N + 1 N + 2
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.