HD6413007F20 Datasheet, PDF (204/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

6. Bus Controller
Table 6.10 Internal Clock Switchover and RTCNT Operation
No. _{CKS2 to CKS0}
Write Timing
1
Low Low
switchover*¹
Old clock source
RTCNT Operation
New clock source
RTCNT clock
RTCNT
2
Low High
switchover*²
Old clock source
N
N+1
CKS bits rewritten
New clock source
RTCNT clock
RTCNT
N
N+1
N+2
CKS bits rewritten
Rev.5.00 Sep. 12, 2007 Page 174 of 764
REJ09B0396-0500