3069RF-ZTAT Datasheet, PDF (434/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

CKS1 and CKS0 Write
No. Timing
4
Low → low switchover*⁴
8TCNT Operation
Old clock
source
New clock
source
8TCNT clock
8TCNT
N
N+1
N+2
CKS bits rewritten
Notes: 1. Including switchovers from the high level to the halted state, and from the halted state
to the high level.
2. Including switchover from the halted state to the low level.
3. Including switchover from the low level to the halted state.
4. The switchover is regarded as a rising edge, causing 8TCNT to increment.
Rev. 5.0, 09/04, page 412 of 978