Pin Functions - Renesas H8S/2319 series Hardware Manual

8.12.3

Pin Functions

Port G pins also function as bus control signal output pins (CS0 to CS3, CS6, CS7) the A/D
converter input pin (ADTRG), and interrupt input pins (IRQ6, IRQ7). The pin functions are
different in mode 7 * 1
Table 8-22 Port G Pin Functions
Pin Selection Method and Pin Functions
PG4/CS0 The pin function is switched as shown below according to the operating mode
and bit PG4DDR.
Operating
Mode
PG4DDR
Pin function
PG3/CS1/CS7 The pin function is switched as shown below according to the operating mode
and CSS17 bit in PFCR1, CS167E bit in PFCR2, and bit PG3DDR.
Operating
Mode
PG3DDR
CS167E
CSS17
Pin function
PG2/CS2 The pin function is switched as shown below according to the operating mode
and CS25E bit in PFCR2, and bit PG2DDR.
Operating
Mode
PG2DDR
CS25E
Pin function
Rev. 5.00, 12/03, page 292 of 1088
, and modes 4 to 6 * 1
. Port G pin functions are shown in table 8-22.
PG4 input pin CS0 output pin PG4 input pin PG4 output pin
0
—
—
PG3
input
pin
0
—
PG2 input
pin
1
Modes 4 to 6 *
0 1
1
Modes 4 to 6 *
1
0
— 0
CS1
PG3
output output
pin pin
1
Modes 4 to 6 *
1
0
CS2 output
PG2 output
pin
Mode 7 *
0
Mode 7 *
0
1 —
1 —
CS7
PG3
output input
pin
pin
Mode 7 *
0
1 —
PG2 input PG2 output
pin pin
1
1
1
1
—
—
PG3
output
pin
1
1
—
pin