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IT8705F V0.4
24
IT8705F
Table 6-8. General Purpose I/O Group 6
Note [cont’d]
Signal
Pin #
Attribute
Description
IRTX/GP64
82
DO8/
DIOD8
Infrared Transmit Output / General Purpose I/O Port 6 Bit 4.
IRRX/GP65
83
DI/
DIOD8
Infrared Receive Input / General Purpose I/O Port 6 Bit 5.
CIRTX/
MIDI_OUT/
GP66
84
DO8/
DO8/
DIOD8
Consumer Infrared Transmit Output / MIDI Output / General Purpose
I/O Port 6 Bit 6.
CIRRX/
MIDI_IN/
GP67
85
DI/DI/
DIOD8
Consumer Infrared Receive Input / MIDI Input / General Purpose I/O
Port 6 Bit 7.
Note: The GPIO registers of these pins are powered by VCC, not VCCH.
Table 6-7. Programming of Pins 82, 83, 84, and 85
Programming Condition
All, 2Ah, Bit 4
LDN4, F4h, Bit 6
LDN7, F0h, Bit 5
Pin 82
1
X
X
GP64
0
0
X
IRTX
0
1
0
IRTX
0
1
1
CIRTX
Programming Condition
All, 2Ah, Bit 5
LDN4, F4h, Bit 6
Pin 83
1
X
GP65
0
0
IRRX
0
1
IRRX/CIRRX
Programming Condition
All, 2Ah, Bit 6
LDN4, F4h, Bit 6
Pin 84
1
X
GP66
0
0
CIRTX
0
1
MIDI_OUT
Programming Condition
All, 2Ah, Bit 7
LDN4, F4h, Bit 6
Pin 85
1
X
GP67
0
0
CIRRX
0
1
MIDI_IN
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