HD64F2149 Datasheet, PDF (394/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Table 12.8 Switching of Internal Clock and TCNT Operation
Timing of Switchover
by Means of CKS1
No. and CKS0 Bits
1 Switching from low
to low*¹
TCNT Clock Operation
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 rewrite
TCNT
N
N+1
N+2
CKS bit rewrite
360