參數(shù)資料
型號: 37C672
廠商: SMSC Corporation
英文描述: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
中文描述: 增強的超級I / O控制器,快速紅外線
文件頁數(shù): 24/173頁
文件大?。?/td> 965K
代理商: 37C672
Enhanced Super I/O Controller with Fast IR
Datasheet
SMSC FDC37C672
Page 12
Rev. 10-29-03
DATASHEET
Chapter 3 Description of Pin Functions
PIN NO.
QFP/TQFP
NAME
TOTAL
SYMBOL
BUFFER
TYPE
PROCESSOR/HOST INTERFACE (34)
37:40,
42:45 /
35:38,
40:43
System Data Bus
8
SD[0:7]
IO24
20:30 /
18:28
11-bit System Address Bus
11
SA[0:10]
I
31 / 29
Chip Select/SA11 (Note 3.2)
1
nCS/SA11
I
36 / 34
Address Enable
1
AEN
I
55 / 53
I/O Channel Ready
1
IOCHRDY
OD24
46 / 44
ISA Reset Drive
1
RESET_DRV
IS
33 / 31
Serial IRQ/Parallel IRQ_3
1
SER_IRQ/
IRQ3
IO24/O24/
D24
(Note 3.1)
32 / 30
PCI Clock for Serial IRQ (33MHz/30MHz)/ Parallel
IRQ_4
1
PCI_CLK/
IRQ4
IO24/O24/
OD24
(Note 3.1)
50 / 48
DMA Request 1
1
DRQ1
O24
48 / 46
DMA Request 2
1
DRQ2
O24
52 / 50
DMA Request 3/8042 P12
1
DRQ3/P12
O24/IO24
47 / 45
DMA Acknowledge 1
1
nDACK1
I
49 / 47
DMA Acknowledge 2
1
nDACK2
I
51 / 49
DMA Acknowledge 3/8042 P16
1
nDACK3/
P16
I/IO24
54 / 52
Terminal Count
1
TC
I
34 / 32
I/O Read
1
nIOR
I
35 / 33
I/O Write
1
nIOW
I
CLOCKS (1)
19 / 17
14.318MHz Clock Input
1
CLOCKI
ICLK
INFRARED INTERFACE (2)
61 / 59
Infrared Rx
1
IRRX
I
62 / 60
Infrared Tx
1
IRTX
O24
POWER PINS (8)
18,53,
65,93 /
16, 51, 63,
91
Power
VCC
7,41, 60,76 /
5, 39, 58, 74
Ground
VSS
FDD INTERFACE (16)
16 / 14
Read Disk Data
1
nRDATA
IS
11 / 9
Write Gate
1
nWGATE
O24/OD24
10 / 8
Write Disk Data
1
nWDATA
O24/OD24
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