DESCRIPTION OF MULTIFUNCTION PINS
Pin
No./QFP
Original Function
Controlled by IRMODSEL(LD8:CRC0.0) and IRRX3SEL(LD8:CRC0.4)
nDACK3
DRQ3
Alternate Function 1 Alternate Function 2
Default
nDACK3
8042 P16
8042 P12
51
52
DRQ3
Controlled by DMA3SEL(LD8:CRC0.1)
nRI2
nDCD2
8042 P16
8042 P12
nRI2
nDCD2
92
94
Controlled by 8042COMSEL(LD8:CRC0.3)
RXD2
TXD2
IRRX
IRTX
RXD2
TXD2
95
96
Controlled by IR Option Register( LD5:CRF1.6)
nDSR2
nRTS2
nCTS2
nDTR2
SA15
SA12
SA13
SA14
nDSR2
nRTS2
nCTS2
nDTR2
97
98
99
100
Controlled by 16 bit Address Qual.(CR24.6)
For more information, refer to tables 65 through 75.
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