HD6475328CG Datasheet, PDF (241/459 Pages) Hitachi Semiconductor – Manual Gives a Hardware Description

Table 11-5 Effect of Changing Internal Clock Sources (cont)
No. Description
4 High → High:
CKS1 and CKS0 are
rewritten while both
clock sources are High.
Timing Chart
Old clock
source
New clock
source
TCNT clock
pulse
TCNT
N
N+1
N+2
CKS rewrite
225