Figure 15.3 Txd Pin; Figure 15.4 Rxd Pin - Hitachi SH7751 Hardware Manual

TxD
SPTRW: Write to SPTR
RxD
SPTRR: Read SPTR
Rev. 3.0, 04/02, page 588 of 1064

Figure 15.3 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