Hitachi HD6473867 Hardware Manual page 149

8.3 Port 3
8.3.1 Overview
Port 3 is a 8-bit I/O port, configured as shown in figure 8-2.
8.3.2 Register Configuration and Description
Table 8-5 shows the port 3 register configuration.
Table 8-5 Port 3 Registers
Name
Port data register 3
Port control register 3
Port pull-up control register 3
Port mode register 3
Port 3
Figure 8-2 Port 3 Pin Configuration
Abbrev. R/W
PDR3 R/W
PCR3 W
PUCR3 R/W
PMR3 R/W
141
P3 /AEVL
7
P3 /AEVH
6
P3 /TXD
5
31
P3 /RXD
4
31
P3 /SCK
3
31
P3 /RESO
2
P3 /UD
1
P3 /PWM
0
Initial Value
H'00
H'00
H'00
H'04
Address
H'FFD6
H'FFE6
H'FFE1
H'FFCA