Major Chips Description
2-55
2.3.5 Description of Multifunction Pins
Table 2-7
FDC37C67 Multifunction Pin Descriptions
Pin No./QFP
Original Function
Alternate Function 1
Alternate Function 2
Default
2
DRVDEN1
IR MODE
IRRX3
DRVDEN1
Controlled by IRMODSEL(LD8:CRC0.0) and IRRX3SEL(LD8:CRC0.4)
32
PCICLK
IRQ4
PCICLK
33
SERIRQ
IRQ3
SERIRQ
Controlled by SERIRQSEL(LD8:CRCO.2)
51
nDACK3
8042 P16
nDACK3
52
DRQ3
8042 P12
DRQ3
Controlled by DMA3SEL(LD8:CRCO.1)
92
nR12
8042 P16
IRQ12
nR12
94
nDCD2
8042 P12
IRQ11
nDCD2
Controlled by 8042COMSEL(LD8:CRCO.3) and SERIRQSEL(LD8:CRCO.2)
95
RXD2
IRRX
RXD2
96
TXD2
IRTX
TXD2
Controlled by IR Option Register(LD5:CRF1.6)
97
nDSR2
SA15
IRQ10
nDSR2
98
nRTS2
SA12
IRQ5
nRTS2
99
nCTS2
SA13
IRQ6
nCTS2
100
nDTR2
SA14
IRQ7
nDTR2
Controlled by 16 bit Address Qual.(CR24.6) and SERIRQSEL(LD8:CRC0.2)
Summary of Contents for 390 Series
Page 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Page 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Page 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Page 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Page 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Page 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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