HD6417751 Datasheet, PDF (628/1105 Pages) Renesas Technology Corp – SuperH RISC engine

TxD
SPTRW: Write to SPTR
Reset
R
QD
SPB0IO
C
SPTRW
Reset
QR _D
SPB0DT
C
SPTRW
Figure 15.3 TxD Pin
Internal data bus
SCI
Transmit enable signal
Serial transmit data
SCI
RxD
Serial receive data
SPTRR
SPTRR: Read SPTR
Internal data bus
Figure 15.4 RxD Pin
Rev. 3.0, 04/02, page 588 of 1064