FDC37M81x SMSC Corporation, FDC37M81x Datasheet - Page 6

• Manufacturer Part Number: FDC37M81x
• Description: PC98/99 Compliant Enhanced Super I/O Controller
• Manufacturer: SMSC Corporation

No./QFP
45:42,
53,65,
40:37
31:21
PIN
20
34
55
46
33
32
48
50
52
47
49
51
54
35
36
19
61
62
93
4
6
System Data Bus
11-bit System Address Bus
Chip Select/SA11 (Note 2)
Address Enable
I/O Channel Ready
ISA Reset Drive
Serial IRQ
PCI Clock for Serial IRQ
(33MHz/30MHz)
DMA Request 1
DMA Request 2
DMA Request 3/8042 P12
DMA Acknowledge 1
DMA Acknowledge 2
DMA Acknowledge 3/8042 P16
Terminal Count
I/O Read
I/O Write
Power Management Event
8042 - P17 (Note 5)
14.318MHz Clock Input
Infrared Rx
Infrared Tx (Note 4)
+5 Volt Supply Voltage
NAME
PROCESSOR/HOST INTERFACE (36)
DESCRIPTION OF PIN FUNCTIONS
INFRARED INTERFACE (2)
POWER PINS (8)
CLOCKS (1)
TOTAL
11
8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
6
SD[0:7]
SA[0:10]
nCS/SA11
AEN
IOCHRDY
RESET_DR
V
SER_IRQ
PCI_CLK
DRQ1
DRQ2
DRQ3/P12
nDACK1
nDACK2
nDACK3/
P16
TC
nIOR
nIOW
nIO_PME
P17
CLOCKI
IRRX
IRTX
VCC
SYMBOL
PER FUNCTION
BUFFER TYPE
(NOTE 1)
O12/IO12
O24PD
OD12
I/IO12
OD24
IO12
IO12
ICLK
ICLK
O12
O12
IO8
IS
I/I
I
I
I
I
I
I
I
I