H8S20103 Datasheet, PDF (153/992 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family / H8S/Tiny Series

Table 5.3 Clock Source Switching
Bit
PHIBSEL
0
0
1
1
0→1
1→0
0→1
1→0
0→1
1→0
0→1
1→0
PHIHSEL
Don't care
Don't care
0→1
1→0
0
0
0
0
1
1
1
1
Section 5 Clock Pulse Generator
PHILSEL
0→1
1→0
Don't care
Don't care
0
0
1
1
0
0
1
1
Switching Operation
φloco → φsub
φsub → φloco
φhoco → φosc
φosc → φhoco
φloco → φhoco
φhoco → φloco
φsub → φhoco
φhoco → φsub
φhoco → φosc
φosc → φhoco
φsub → φosc
φosc → φsub
Rev. 1.00 Oct. 03, 2008 Page 127 of 962
REJ09B0465-0100