FDC37C672QFP SMSC Corporation, FDC37C672QFP Datasheet - Page 12

• Manufacturer Part Number: FDC37C672QFP
• Description: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
• Manufacturer: SMSC Corporation

Chapter 3
SMSC FDC37C672
7,41, 60,76 /
5, 39, 58, 74
QFP/TQFP
16, 51, 63,
PIN NO.
42:45 /
20:30 /
31 / 29
36 / 34
55 / 53
46 / 44
33 / 31
32 / 30
50 / 48
48 / 46
52 / 50
47 / 45
49 / 47
51 / 49
54 / 52
34 / 32
35 / 33
19 / 17
61 / 59
62 / 60
65,93 /
16 / 14
37:40,
35:38,
18,53,
40:43
18:28
11 / 9
10 / 8
91
System Data Bus
11-bit System Address Bus
Chip Select/SA11 (Note 3.2)
Address Enable
I/O Channel Ready
ISA Reset Drive
Serial IRQ/Parallel IRQ_3
PCI Clock for Serial IRQ (33MHz/30MHz)/ Parallel
IRQ_4
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
14.318MHz Clock Input
Infrared Rx
Infrared Tx
Power
Ground
Read Disk Data
Write Gate
Write Disk Data
Description of Pin Functions
PROCESSOR/HOST INTERFACE (34)
NAME
INFRARED INTERFACE (2)
DATASHEET
FDD INTERFACE (16)
POWER PINS (8)
CLOCKS (1)
Page 12
TOTAL
11
8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Enhanced Super I/O Controller with Fast IR
RESET_DRV
DRQ3/P12
SER_IRQ/
nCS/SA11
IOCHRDY
PCI_CLK/
SYMBOL
nDACK3/
nWGATE
nWDATA
nRDATA
SA[0:10]
nDACK1
nDACK2
CLOCKI
SD[0:7]
DRQ1
DRQ2
nIOW
IRRX
IRQ3
IRQ4
nIOR
IRTX
VCC
AEN
VSS
P16
TC
O24/OD24
O24/OD24
IO24/O24/
IO24/O24/
(Note 3.1)
(Note 3.1)
O24/IO24
BUFFER
Rev. 10-29-03
I/IO24
TYPE
OD24
OD24
IO24
ICLK
D24
O24
O24
O24
IS
IS
I
I
I
I
I
I
I
I
I
Datasheet