8.3
Port 2
8.3.1
Overview
Port 2 is an 8-bit I/O port. Figure 8-2 shows its pin configuration.
P27
P26
P25
P24
Port 2
P23
P22/SO1
P21/SI1
P20/SCK1
Figure 8-2 Port 2 Pin Configuration
8.3.2
Register Configuration and Description
Table 8-5 shows the port 2 register configuration.
Table 8-5 Port 2 Registers
Name
Abbrev.
PDR2
PCR2
PMR2
PMR4
R/W
R/W
W
Initial Value
H'00
Address
H'FFD5
H'FFE5
H'FFC9
H'FFCB
Port data register 2
Port control register 2
Port mode register 2
Port mode register 4
H'00
R/W
R/W
H'D8
H'00
140