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FDC37C957FR 数据表(PDF) 9 Page - SMSC Corporation

部件名 FDC37C957FR
功能描述  ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS
Download  328 Pages
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制造商  SMSC [SMSC Corporation]
网页  http://www.smsc.com
标志 SMSC - SMSC Corporation

FDC37C957FR 数据表(HTML) 9 Page - SMSC Corporation

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DESCRIPTION OF PIN FUNCTIONS
Pin #
Name
Description
Supply
Voltage
Type
HOST (ISA) INTERFACE
80:82,
84:88
SD[0:7]
System Data Bus
VCC2
I/O24
54:69
SA[0:15]
System Address Bus
VCC2
I
96
nROMCS
ROM Chip select
VCC2
I
79
AEN
Address Enable (DMA master has bus
control)
VCC2
I
95
IOCHRDY
I/O Channel Ready
VCC2
OD24
91,93, 202,
201
DRQ[0:3]/
OUT9,8
DMA Requests
VCC2
O24
90,92, 207,
208
nDACK[0:3]/
GPIO18,19
DMA Acknowledge
VCC2
I
94
TC
Terminal Count
VCC2
I
77
nIOR
I/O Read
VCC2
I
78
nIOW
I/O Write
VCC2
I
97
nMEMRD
Memory Read
VCC2
I
98
nMEMWR
Memory Write
VCC2
I
70
IRQ6(FDC)/
OUT0
Floppy Disk Interrupt Request/
Generic Output 0
VCC2
O24
71
nIRQ8/
OUT1
Active low Interrupt Request 8/
Generic Output 1
VCC2
O24
72
IRQ7(PP)/
OUT2
Parallel Port Interrupt Request/
Generic Output 2
VCC2
O24
74
IRQ12(M)/
OUT3
Mouse Interrupt Request/
Generic Output 3
VCC2
O24
75
IRQ1(KB)/
OUT4
Keyboard Interrupt Request/
Generic Output 4
VCC2
O24
76
nNOWS
No Wait State
VCC2
OD24


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