Renesas H8S/2100 Series Hardware Manual page 373

Timing of Switchover
by Means of CKS1
No. and CKS0 Bits
3 Clock switching from high
3
to low level*
4 Clock switching from high
to high level
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.
TCNT Clock Operation
Clock before
switchover
Clock after
switchover
TCNT
clock
TCNT N
Clock before
switchover
Clock after
switchover
TCNT
clock
TCNT N
Section 12 8-Bit Timer (TMR)
4
*
N + 1 N + 2
CKS bit rewrite
N + 1 N + 2
CKS bit rewrite
Rev. 1.00 May 09, 2008 Page 347 of 954
REJ09B0462-0100