Hitachi H8/3008 Hardware Manual page 588

BRR—Bit Rate Register
7
Bit
Initial value 1
Read/Write R/W
572
6 5
1 1
R/W R/W
Serial communication bit rate setting
H'FFFB1
4 3
1 1
R/W R/W
SCI0
2 1
1 1
R/W R/W
0
1
R/W