HD6413007F20 Datasheet, PDF (416/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

10. 8-Bit Timers
Table 10.6 Internal Clock Switchover and 8TCNT Operation
No. CKS1 and CKS0 Write Timing
1 High → high switchover*¹
8TCNT Operation
Old clock source
New clock source
8TCNT clock
2 High → low switchover*²
8TCNT
Old clock source
N
N+1
CKS bits rewritten
New clock source
8TCNT clock
3 Low → high switchover*³
8TCNT
N
Old clock source
New clock source
8TCNT clock
N+1
N+2
CKS bits rewritten
*⁴
8TCNT
N
N+1
N+2
CKS bits rewritten
Rev.5.00 Sep. 12, 2007 Page 386 of 764
REJ09B0396-0500