HD6432345 Datasheet, PDF (408/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

Table 10.5 Switching of Internal Clock and TCNT Operation
Timing of Switchover
by Means of CKS1
No.
and CKS0 Bits
TCNT Clock Operation
1
Switching from
low to low*¹
Clock before
switchover
Clock after
switchover
TCNT clock
2
Switching from
low to high*²
TCNT
Clock before
switchover
Clock after
switchover
TCNT clock
N
N+1
CKS bit write
TCNT
N
3
Switching from
high to low*³
Clock before
switchover
Clock after
switchover
TCNT clock
N+1
N+2
CKS bit write
*4
TCNT
N
N+1
N+2
CKS bit write
392