Renesas H8/38024 Hardware Manual page 581

TDR—Transmit Data Register
Bit 7
TDR7
Initial value 1
Read/Write R/W
6 5
TDR6 TDR5 TDR4
1 1
R/W R/W R/W
Data for transfer to TSR
H'AB
4 3 2
TDR3 TDR2
1 1 1
R/W R/W
Rev. 6.00, 08/04, page 551 of 628
SCI3
1 0
TDR1 TDR0
1 1
R/W R/W