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FDC37B80X Datasheet(PDF) 6 Page - SMSC Corporation

Part No. FDC37B80X
Description  PC98/99 Compliant Enhanced Super I/O Controller with Keyboard/Mouse Wake-Up
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Maker  SMSC [SMSC Corporation]
Homepage  http://www.smsc.com
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6
DESCRIPTION OF PIN FUNCTIONS
PIN
No./QFP
NAME
TOTAL
SYMBOL
BUFFER
TYPE
PROCESSOR/HOST INTERFACE (36)
45:42,
40:37
System Data Bus
8
SD[0:7]
IO12
31:21
11-bit System Address Bus
11
SA[0:10]
I
20
Chip Select/SA11 (Note 1)
1
nCS/SA11
I
34
Address Enable
1
AEN
I
55
I/O Channel Ready
1
IOCHRDY
OD12
46
ISA Reset Drive
1
RESET_DRV
IS
33
Serial IRQ
1
SER_IRQ
IO12
32
PCI Clock for Serial IRQ (33MHz/30MHz)
1
PCI_CLK
ICLK
48
DMA Request 1
1
DRQ1
O12
50
DMA Request 2
1
DRQ2
O12
52
DMA Request 3/8042 P12
1
DRQ3/P12
O12/IO12
47
DMA Acknowledge 1
1
nDACK1
I
49
DMA Acknowledge 2
1
nDACK2
I
51
DMA Acknowledge 3/8042 P16
1
nDACK3/
P16
I/IO12
54
Terminal Count
1
TC
I
35
I/O Read
1
nIOR
I
36
I/O Write
1
nIOW
I
4
Power Management Event
1
nPME
OD24
6
8042 - P17 (Note 5)
1
P17
IO8
CLOCKS (1)
19
14.318MHz Clock Input
1
CLOCKI
ICLK
INFRARED INTERFACE (2)
61
Infrared Rx
1
IRRX
I
62
Infrared Tx (Note 4)
1
IRTX
O24PD
POWER PINS (8)
53,65,
93
Power
VCC
7,41,
60,76
Ground
VSS




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