Datasheet

Section 12 8-Bit Timers
Rev. 4.00 Sep 27, 2006 page 375 of 1130
REJ09B0327-0400
Table 12.8 Switching of Internal Clock and TCNT Operation
No.
Timing of Switchover
by Means of CKS1
and CKS0 Bits TCNT Clock Operation
1 Switching from low
to low
*
1
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
CKS bit rewrite
N N + 1
2 Switching from low
to high
*
2
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
CKS bit rewrite
N N + 1 N + 2