Renesas H8S/2437 Hardware Manual page 651

Bit Bit Name
2 SCK2
1 SCK1
0 SCK0
[Legend] x: Don't care.
Initial Value R/W
0 R/W
0 R/W
0 R/W
Description
System Clock Select 2 to 0
Select the division ratio.
000: 1/1
001: 1/2
010: 1/4
011: Setting prohibited
100: Setting prohibited
101: Setting prohibited
11x: Setting prohibited
Rev. 1.00, 09/03, page 613 of 704