FDC37M817-MS 查看數據表（PDF） - SMSC -> Microchip

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FDC37M817-MS

PC98/99 Compliant Enhanced Super I/O Controller with Keyboard/Mouse Wake-Up

SMSC -> Microchip 

DESCRIPTION OF PIN FUNCTIONS

PIN

No./QFP

99

100

97

94

92

75:68

66

67

83

82

81

77

80

79

78

59

58

57

56

64

63

NAME

TOTAL SYMBOL

Clear to Send 2/Sys Addr 13

1

nCTS2/

SA13

Data Terminal Ready/Sys Addr

14

1

nDTR2/

SA14

Data Set Ready 2/Sys Addr 15

1

nDSR2/

SA15

Data Carrier Detect 2/8042 P12

1

nDCD2/P12

Ring Indicator 2/8042 P16

1

nRI2/P16

PARALLEL PORT INTERFACE (17)

Parallel Port Data Bus

8

PD[0:7]

Printer Select

1

nSLCTIN

Initiate Output

1

nINIT

Auto Line Feed

1

nALF

Strobe Signal

1

nSTROBE

Busy Signal

1

BUSY

Acknowledge Handshake

1

nACK

Paper End

1

PE

Printer Selected

1

SLCT

Error at Printer

1

nERROR

KEYBOARD/MOUSE INTERFACE (6)

Keyboard Data

1

KDAT

Keyboard Clock

1

KCLK

Mouse Data

1

MDAT

Mouse Clock

1

MCLK

Keyboard Reset

1

KBDRST

(Note 3)

Gate A20

1

A20M

BUFFER TYPE

PER FUNCTION

(NOTE 1)

I/I

O4/I

I/I

I/IO24

I/IO24

IO24

OD24/O24

OD24/O24

OD24/O24

OD24/O24

I

I

I

I

I

IOD16

IOD16

IOD16

IOD16

O4

O4

Note: The "n" as the first letter of a signal name indicates an "Active Low" signal.

Note 1:Buffered types per function on multiplexed pins are separated by a slash “/”. Buffer types in

parenthesis represent multiple buffer types for a single pin function.

Note 2:For 12 bit addressing, SA0:SA11 only, nCS should be tied to GND. For 16 bit external address

qualification, address bits SA11:SA15 can be "ORed" together and applied to nCS. The nCS

pin functions as SA11 in full 16 bit Internal Address Qualification Mode. CR24.6 controls the

FDC37M81x addressing modes.

Note 3: KBDRST is active low.

Note 4: The pull-down on this pin is always active including when the output driver is tristated and

regardless of the state of internal PWRGOOD.

8

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