Hitachi SH7750 Hardware Manual page 733

MD1/TxD2
Mode setting
register
SPTRW: Write to SPTR
MD2/RxD2
Mode setting
register
SPTRR
SPTRR: Read SPTR
Figure 16.4 MD1/TxD2 Pin
D0
Internal data bus
Figure 16.5 MD2/RxD2 Pin
Reset
R
D1
Q
D
SPB2IO
C
SPTRW
Reset
R
D0
Q
D
SPB2DT
C
SPTRW
Rev. 6.0, 07/02, page 683 of 986
Internal data bus
SCIF
Transmit enable
signal
Serial transmit data
SCIF
Serial receive
data