LPC47M112 Ver la hoja de datos (PDF) - SMSC -> Microchip

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LPC47M112

Enhanced Super I/O Controller with LPC Interface / Dual Game Port Interface

SMSC -> Microchip 

Enhanced Super I/O Controller with LPC Interface

Datasheet

3 DESCRIPTION OF PIN FUNCTIONS

PIN No./ QFP

NAME

TOTAL

PROCESSOR/HOST LPC INTERFACE (10)

23:20

Multiplexed Command, 4

Address, Data [3:0]

24

Frame

1

25

Encoded

DMA 1

Request

26

PCI Reset

1

27

Power Down

1

29

PCI Clock

1

30

Serial IRQ

1

CLOCKS (2)

6

32.768 Trickle Clock 1

Input

19

14.318MHz

Clock 1

Input

FAN CONTROL (4)

51

General Purpose I/O 1

/Fan Tachometer 2

52

General Purpose I/O 1

/Fan Tachometer 1

54

General Purpose I/O 1

/Fan Speed Control 2

55

General Purpose I/O 1

/Fan Speed Control 1

INFRARED INTERFACE (2)

61

Infrared Rx

1

/General Purpose I/O

62

Infrared Tx

1

/General Purpose I/O

POWER PINS (10)

53, 65,93

Power

3

7, 31, 60,76

Ground

4

40

Analog Ground

1

44

Reference Voltage

1

18

Trickle Voltage

1

FDD INTERFACE (14)

16

Read Disk Data

1

11

Write Gate

1

10

Write Disk Data

1

12

Head Select

1

8

Step Direction

1

SYMBOL

BUFFER

TYPE

BUFFER TYPE

PER FUNCTION

(NOTE 1)

LAD[3:0]

PCI_IO PCI_IO

nLFRAME

nLDRQ

PCI_I

PCI_O

PCI_I

PCI_O

nPCI_RESE

T

nLPCPD

PCI_CLK

SER_IRQ

PCI_I

PCI_I

PCI_ICL

K

PCI_IO

PCI_I

PCI_I

PCI_ICLK

PCI_IO

CLOCKI32 IS

IS

CLOCKI

IS

IS

GP30/

FAN_TACH

2

GP31/

FAN_TACH

1

GP32/FAN2

IO8

IO8

IO12

GP33/FAN1 IO12

IRRX2/GP34 IS/O8

IRTX2/GP35 IO12

(I/O8/OD8)/I

(I/O8/OD8)/I

(I/O12/OD12)/

(O12/OD12)

(I/O12/OD12)/

(O12/OD12)

IS/(IS/O8/OD8)

O12/(I/O12/ OD12)

VCC

VSS

AVSS

VREF

VTR

nRDATA

IS

nWGATE

O12

nWDATA

O12

nHDSEL

O12

nDIR

O12

IS

(O12/OD12)

(O12/OD12)

(O12/OD12)

(O12/OD12)

NOTES

2

3

4

4

5,6

7

SMSC DS – LPC47M112

Page 9

DATASHEET

Rev. 02-16-07

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