HD6432646 Hitachi, HD6432646 Datasheet - Page 266

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

9.3
9.3.1
Port 2 is an 8-bit I/O port. Port 2 also functions as TPU I/O pins (TIOCB5, TIOCA5, TIOCB4,
TIOCA4, TIOCD3, TIOCC3, TIOCB3, TIOCA3). The pin functions of port 2 change with the
operating mode.
Figure 9-2 shows the pin functions for port 2.
9.3.2
Table 9-4 shows the configuration of port 3 registers.
Table 9-4
Name
Port 2 data direction register
Port 2 data register
Port 2 register
Note: * Lower 16 bits of the address.
232
Port 2
Overview
Register Configuration
Port 2 Register Configuration
Port 2
Figure 9-2 Port 2 Pin Functions
Abbreviation
P2DDR
P2DR
PORT2
Port 2 pins
P27
P26
P25
P24
P23
P22
P21
P20
(I/O) / TIOCB5 (I/O)
(I/O) / TIOCA5 (I/O)
(I/O) / TIOCB4 (I/O)
(I/O) / TIOCA4 (I/O)
(I/O) / TIOCD3 (I/O)
(I/O) / TIOCC3 (I/O)
(I/O) / TIOCB3 (I/O)
(I/O) / TIOCA3 (I/O)
R/W
W
R/W
R
Initial Value
H'00
H'00
Undefined
Address*
H'FE31
H'FF01
H'FFB1