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H8S/2240 数据表(PDF) 318 Page - Renesas Technology Corp

部件名 H8S/2240
功能描述  Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
PDF  818 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8S/2240 数据表(HTML) 318 Page - Renesas Technology Corp

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Section 8 I/O Ports
Rev.3.00 Mar. 26, 2007 Page 276 of 772
REJ09B0355-0300
Pin
Selection Method and Pin Functions
PF
1/BACK/IRQ1
The pin function is switched as shown below according to the operating mode,
and the BRLE bit in BCRL and PF1DDR bit.
Operating
Mode
Modes 1, 2, 4, 5, 6*
2
Modes 3 and 7*
2
BRLE
0
1
—
PF1DDR
0
1
—
01
Pin function
PF
1
input pin
PF
1
output pin
BACK
output pin
PF
1
input pin
PF
1
output pin
IRQ1 interrupt input pin*1
Notes: 1. When this pin is used as an external interrupt input, it should not be
used as an input/output pin with other functions.
2. Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.
PF
0/BREQ/IRQ0
The pin function is switched as shown below according to the operating mode,
and the BRLE bit in BCRL and PF0DDR bit.
Operating
Mode
Modes 1, 2, 4, 5, 6*
2
Modes 3 and 7*
2
BRLE
0
1
—
PF0DDR
0
1
—
01
Pin function
PF
0
input pin
PF
0
output pin
BREQ
input pin
PF
0
input pin
PF
0
output pin
IRQ0 interrupt input pin*1
Notes: 1. When this pin is used as an external interrupt input, it should not be
used as an input/output pin with other functions.
2. Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.



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