HD64F2357F20V Datasheet, PDF (1005/1049 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-chip Microcomputer H8S Family / H8S/2300 Series

C.3 Port 3 Block Diagram
*1
P3_n
*2
Reset
R
Q
D
P3nDDR
C
WDDR3
Reset
R
Q
D
P3nDR
C
WDR3
Reset
R
Q
D
P3nODR
C
WODR3
RODR3
RDR3
SCI module
Serial transmit enable
Serial transmit data
RPOR3
Legend:
WDDR3: Write to P3DDR
WDR3: Write to P3DR
WODR3: Write to P3ODR
RDR3: Read P3DR
RPOR3: Read port 3
RODR3: Read P3ODR
n = 0 or 1
Notes: 1. Output enable signal
2. Open drain control signal
Figure C-3 (a) Port 3 Block Diagram (Pins P3₀ and P3₁)
Rev.6.00 Oct.28.2004 page 975 of 1016
REJ09B0138-0600H