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H8S2245 Datasheet(PDF) 317 Page - Renesas Technology Corp

Part # H8S2245
Description  Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
PDF  818 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8S2245 Datasheet(HTML) 317 Page - Renesas Technology Corp

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Section 8 I/O Ports
Rev.3.00 Mar. 26, 2007 Page 275 of 772
REJ09B0355-0300
Pin
Selection Method and Pin Functions
PF
4/HWR
The pin function is switched as shown below according to the operating mode
and bit PF4DDR.
Operating
Mode
Modes 1, 2, 4, 5, 6*
Modes 3 and 7*
PF4DDR
—
01
Pin function
HWR output pin
PF
4 input pin
PF
4 output pin
Note:
*
Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.
PF
3/LWR/IRQ3
The pin function is switched as shown below according to the operating mode
and bit PF3DDR.
Operating
Mode
Modes
1, 2, 4, 5, 6*
2
Modes
3 and 7*
2
PF3DDR
—
01
Pin function
LWR output pin
PF
3 input pin
PF
3 output pin
IRQ3 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
2/WAIT/
BREQO/IRQ2
The pin function is switched as shown below according to the operating mode,
and the BREQOE bit, WAITE bit in BCRL, and PF2DDR bit.
Operating
Mode
Modes 1, 2, 4, 5, 6*
2
Modes 3 and 7*
2
BREQOE
0
1
—
WAITE
0
1
——
PF2DDR
0
1
——
01
Pin function
PF
2
input pin
PF
2
output pin
WAIT
input pin
BREQO
output pin
PF
2
input pin
PF
2
output pin
IRQ2 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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