Datasheet

Section 12 8-Bit Timers (TMR)
Rev.6.00 Mar. 18, 2009 Page 526 of 980
REJ09B0050-0600
Table 12.5 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
TCNT
TCNT clock
Clock after
switchover
Clock before
switchover
CKS bit write
NN
2 Switching from
low to high
*
2
TCNT
CKS bit write
N N+1 N
TCNT clock
Clock after
switchover
Clock before
switchover
3 Switching from
high to low
*
3
TCNT
CKS bit write
NN N
*
4
TCNT clock
Clock after
switchover
Clock before
switchover