LAN91C100 Ver la hoja de datos (PDF) - SMSC -> Microchip

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LAN91C100

FEAST™ Fast Ethernet Controller

SMSC -> Microchip 

DESCRIPTION OF PIN FUNCTIONSOF PIN FUNCTIONSPIN FUNCTIONS

PQFP/TQFP

PIN NO.

14,32,

46,50,

66,75,

82,94,

111,116,

120,122,

128,134,

138,169,

174,180,

185,200

NAME

Ground

SYMBOL

GND

BUFFER

TYPE

DESCRIPTION

Ground pins.

203

Analog

AGND

Ground

Analog ground pin.

2

Transmit TXEN

Enable

O4 Output. Used for 10 Mbps ENDEC. This pin

stays low when MIISEL is high.

201

Transmit TXD

Data

208

Carrier

Sense

CRS

207

Collision COL

Detection

206

Receive

RXD

Data

197

Transmit TXC

Clock

199

Receive

RXC

Clock

202

Loopback LBK

O4 NRZ transmit data output for 10 Mbps

ENDEC interface.

ID

Input. Carrier sense from 10 Mbps ENDEC

interface. This pin is ignored when MIISEL

is high.

ID

Input. Collision detection indication from 10

Mbps ENDEC interface. This pin is ignored

when MIISEL is high.

IP

NRZ receive data input from 10 Mbps

ENDEC interface. This pin is ignored when

MIISEL is high.

IP

Input. 10 MHz transmit clock used in 10

Mbps operation. This pin is ignored when

MIISEL is high.

IP

Input. 10Mhz receive clock recovered by the

10 Mbps ENDEC. This pin is ignored when

MIISEL is high.

O4 Output. Active when LOOP bit is set (TCR

bit 1). Independent of port selection

(MIISEL=X).

8

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