HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 318

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 I/O Ports
Pin
PF
PF
Rev.3.00 Mar. 26, 2007 Page 276 of 772
REJ09B0355-0300
1
0
/BACK/IRQ1
/BREQ/IRQ0
Selection Method and Pin Functions
The pin function is switched as shown below according to the operating mode,
and the BRLE bit in BCRL and PF1DDR bit.
Notes: 1. When this pin is used as an external interrupt input, it should not be
The pin function is switched as shown below according to the operating mode,
and the BRLE bit in BCRL and PF0DDR bit.
Notes: 1. When this pin is used as an external interrupt input, it should not be
Operating
Mode
BRLE
PF1DDR
Pin function
Operating
Mode
BRLE
PF0DDR
Pin function
2. Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.
2. Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.
used as an input/output pin with other functions.
used as an input/output pin with other functions.
input pin
input pin
PF
PF
0
0
1
0
Modes 1, 2, 4, 5, 6*
Modes 1, 2, 4, 5, 6*
0
0
output pin
output pin
PF
PF
1
1
IRQ1 interrupt input pin*
IRQ0 interrupt input pin*
1
0
output pin
input pin
BREQ
BACK
2
2
—
—
1
1
input pin
input pin
Modes 3 and 7*
Modes 3 and 7*
PF
PF
0
1
0
1
1
0
—
—
output pin
output pin
PF
PF
1
1
1
0
2
2