Hitachi SH7750 Hardware Manual page 662

MD7/TxD
Mode setting register
SPTRW: Write to SPTR
RxD
SPTRR: Read SPTR
Rev. 6.0, 07/02, page 612 of 986
Figure 15.3 MD7/TxD Pin
SPTRR
Figure 15.4 RxD Pin
Reset
R
Q
D
SPB0IO
C
SPTRW
Reset
R
Q
D
SPB0DT
C
SPTRW
Internal data bus
Internal data bus
SCI
Transmit enable signal
Serial transmit data
SCI
Serial receive data