8.4
Port 3
8.4.1
Overview
Port 3 is an 8-bit I/O port, configured as shown in figure 8-3.
P37/AEVL
P36/AEVH
P35/TXD31
P34/RXD31
P33/SCK31
P32/RESO
P31/UD
Port 3
P30/PWM
Figure 8-3 Port 3 Pin Configuration
Register Configuration and Description
8.4.2
Table 8-8 shows the port 3 register configuration.
Table 8-8 Port 3 Registers
Name
Abbrev.
PDR3
R/W
R/W
W
Initial Value
H'00
Address
H'FFD6
H'FFE6
H'FFE1
H'FFCA
Port data register 3
Port control register 3
Port pull-up control register 3
Port mode register 3
PCR3
H'00
PUCR3
PMR3
R/W
R/W
H'00
H'04
145
ETC [ ETC ]
