HD6432633 Datasheet, PDF (488/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

10A.13.3 Pin Functions
Port G is used also as external interrupt input pins (IRQ6 and IRQ7) and bus control signal output
pins (CS0 to CS3, CAS, and OE). The pin functions are different between modes 4 and 6, and
mode 7. Table 10A-23 shows the port G pin functions.
Table 10A-23 Port G Pin Functions
Pin
PG4/CS0
Selection Method and Pin Functions
The pin function is switched as shown below according to the operating mode and
bit PG4DDR.
Operating
Mode
Modes 4 to 6
Mode 7
PG4DDR
0
1
0
1
Pin function PG4 input pin CS0 output pin PG4 input pin PG4 output pin
PG3/CS1
The pin function is switched as shown below according to the operating mode and
bit PG3DDR.
Operating
Mode
Modes 4 to 6
Mode 7
PG3DDR
0
1
0
1
Pin function PG3 input pin CS1 output pin PG3 input pin PG3 output pin
PG2/CS2
The pin function is switched as shown below according to the operating mode and
bit PG2DDR.
Operating
Mode
Modes 4 to 6
Mode 7
PG2DDR
0
1
0
1
Pin function PG2 input pin CS2 output pin PG2 input pin PG2 output pin
434