HD6432633 Datasheet, PDF (706/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

Table 13-5 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
652