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FDC37B727 データシート(PDF) 11 Page - SMSC Corporation

部品番号 FDC37B727
部品情報  128 Pin Enhanced Super I/O Controller with ACPI Support
Download  244 Pages
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メーカー  SMSC [SMSC Corporation]
ホームページ  http://www.smsc.com
Logo SMSC - SMSC Corporation

FDC37B727 データシート(HTML) 11 Page - SMSC Corporation

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GENERAL PURPOSE I/O PINS
TABLE 3 - GENERAL PURPOSE I/O PIN FUNCTIONS
PIN NO.
QFP
DEFAULT
FUNCTION
ALTERNATE
FUNCTION 1
ALTERNATE
FUNCTION 2
ALTERNATE
FUNCTION 3
BUFFER
TYPE
5
INDEX
REG.
GPIO
77
GPIO
nSMI
-
-
IOP4/(OP12/
OD12)
GP1
GP10
78
GPIO
nRING
EETI
1
-
IOP4/I/I
GP1
GP11
79
GPIO
WDT
P17/P12
4
EETI
1
IOP4/O4/IO4/I
GP1
GP12
80
GPIO
LED
-
-
IOP4/O24
GP1
GP13
81
GPIO
IRRX2
-
-
IOP4/I
GP1
GP14
82
GPIO
IRTX2
-
-
IOP4/O24
GP1
GP15
4
nMTR1
GPIO
-
-
(O24/OD24)/
IOP4
GP1
GP16
6
nDS1
GPIO
-
-
(O24/OD24)/
IOP4
GP1
GP17
39
PCI_CLK
IRQ14
GPIO
-
CLKIN/(O12/
OD12)/IOP4
GP5
GP50
2
DRVDEN1
GPIO
IRQ8
nSMI
(O24/OD24)
/IOP4/
(OP12/OD12)/
(OP12/OD12)
GP5
GP52
91
nROMCS
2
IRQ11
GPIO
EETI
1
IO12/(O12/
OD12)/IOP4/I
GP5
GP53
92
nROMOE
2
IRQ12
GPIO
EETI
1
IO12/(O12/
OD12)/IOP4/I
GP5
GP54
83
RD0
2,3
IRQ1
GPIO
nSMI
IO12/(O12/
OD12)/IOP4/
(OP12/OD12)
GP6
GP60
84
RD1
2,3
IRQ3
GPIO
LED
IO12/(O12/
OD12)/IOP4/
O24
GP6
GP61
85
RD2
2,3
IRQ4
GPIO
nRING
IO12/(O12/
OD12)/IOP4/I
GP6
GP62
86
RD3
2,3
IRQ5
GPIO
WDT
IO12/(O12/
OD12)/IOP4/
O4
GP6
GP63
87
RD4
2,3
IRQ6
GPIO
P17/P12
4
IO12/(O12/
OD12)/IOP4/
IO4
GP6
GP64
88
RD5
2,3
IRQ7
GPIO
-
IO12/(O12/
OD12)/IOP4
GP6
GP65
89
RD6
2,3
IRQ8
GPIO
-
IO12/(OP12/
OD12)/IOP4
GP6
GP66
90
RD7
2,3
IRQ10
GPIO
-
IO12/(O12/
OD12)/IOP4
GP6
GP67
Note 1: Either Edge Triggered Interrupt Inputs.
Note 2: At power-up, RD0-7, nROMCS and nROMOE function as the XD Bus. To use RD0-7 for
alternate functions, nROMCS must stay high until those pins are finished being programmed.
Note 3: These pins cannot be programmed as open drain pins in their original function.
Note 4: The function of P17 or P12 is selected via the P17/P12 select bit in the Ring Filter Select
Register in Logical Device 8 at 0xC6. Default is P17.


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