Hitachi H8S/2633 Hardware Manual page 1031

TDR0—Transmit Data Register 0
TDR1—Transmit Data Register 1
TDR2—Transmit Data Register 2
TDR3—Transmit Data Register 3
TDR4—Transmit Data Register 4
Bit :
Initial value :
R/W :
7 6
1 1
R/W R/W
H'FF7B
H'FF83
H'FF8B
H'FDD3
H'FDDB
5 4
1 1
R/W R/W
3 2
1 1
R/W R/W
SCI0
SCI1
SCI2
SCI3
SCI4
1 0
1 1
R/W R/W
1019