TP112 datasheet(3/8 Pages) ETC

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TP112

TP112-DS-P02

Jan 5, 2000

PIN Description

TYPE

DESCRIPTION

Used as Input pin

Used as Output pin

I/O

Used as Input and Output pin

Used as Output with Open Drain

PIN NO.

LABEL

TYPE

DESCRIPTION

Media Connections

104,105

RXIP,RXIM

Receiver Pair

Differential data from external transformers RD

± pair.

111,110

TXOP,TXOM

Transmit Pair

Differential data to external transformers TD

± pair.

1,2

FXRDP,FXRDM

Fiber Receiver Data Pair

Used to receiver the data from the fiber transceiver module,

need external pull high resistor and pull low resistor, depend

on impedance match of the fiber transceiver module.

8,7

FXTDP,FXTDM

Fiber Transmit Data Pair

It used as output the data into the fiber transceiver module,

need external pull high resistor and pull low resistor, depend

on impedance match of the fiber transceiver module.

FXSD

Fiber Signal Detect

Used as an input pin from the Fiber transceiver module to

indicate a valid signal quality had been detect.

MII Interface

TXER0

TXER1

Transmit Error

Active high. When an error happened in the transmit data

stream.

TXEN0

TXEN1

Transmit Enable

Active high. Indicate 4B data valid on TXD[3:0]

TXCLK0

TXCLK1

I/O

Transmit Clock

Output is 25MHz continuous clock.

58,57,56,55

31,32,33,34

TXD[3:0]0

TXD[3:0]1

Transmit Data Input

4B transmit data.

RXDV0

RXDV1

O3s

Receive Data valid

Active high. Indicates that a received frame is in progress,

and data on RXD pin is valid

RXER0

RXER1

Receive Error

It Indicate that there's an error during a receive frame when

high

RXCLK0

RXCLK1

Receive Clock

25MHz output. The clock is recovered from the incoming data

on the cable inputs

73,74,75,76

48,49,50,51

RXD[3:0]0

RXD[3:0]1

Receive Data Output

4B data output and synchronously to RXCLK.

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