AM79C960 datasheet(76/127 Pages) AMD

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AMD

1-418

Am79C960

ISACSR6: LED2 Status

Bit

Name

Description

ISACSR6

controls

the

func-

tion(s)

that

the

LED2

displays. Multiple functions can

be simultaneously enabled on

this LED pin. The LED display will

indicate the logical OR of the en-

abled

functions.

ISACSR6

defaults to twisted pair MAU Re-

ceive Polarity (RCVPOL) with

pulse stretcher enabled (PSE =

1) and is fully programmable.

LEDOUT

Indicates

the

current

(non-

stretched) state of the function(s)

generated. Read only.

14-8

RES

Reserved locations. Read and

written as zero.

PSE

Pulse Stretcher Enable. Extends

the LED illumination for each en-

abled function occurrence.

0 is disabled, 1 is enabled.

6-5

RES

Reserved locations. Read and

written as zero.

XMT E

Enable Transmit Status Signal.

Indicates PCnet-ISA controller

transmit activity .

0 disables the signal, 1 enables

the signal.

RVPOL E

Enable Receive Polarity Signal.

Enables LED pin assertion when

receive polarity is correct on the

10BASE-T port. Clearing the bit

indicates

this

function

be ignored.

RCV E

Enable Receive Status Signal.

Indicates receive activity on the

network.

0 disables the signal, 1 enables

the signal.

JAB E

Enable Jabber Signal. Indicates

the PCnet-ISA controller is jab-

bering on the network.

0 disables the signal, 1 enables

the signal.

COL E

Enable Collision Signal. Indi-

cates collision activity on the

network.

0 disables the signal, 1 enables

the signal.

ISACSR7: LED3 Status

Bit

Name

Description

ISACSR7

controls

the

func-

tion(s)

that

the

LED3

displays. Multiple functions can

be simultaneously enabled on

this LED pin. The LED display will

indicate the logical OR of the en-

abled

functions.

ISACSR7

defaults

Transmit

Status

(XMT) with pulse stretcher en-

abled (PSE = 1) and is fully

programmable.

LEDOUT

Indicates

the

current

(non-

stretched) state of the function(s)

generated. Read only.

14-8

RES

Reserved locations. Read and

written as zero.

PSE

Pulse Stretcher Enable. Extends

the LED illumination for each en-

abled function occurrence.

0 is disabled, 1 is enabled.

6-5

RES

Reserved locations. Read and

written as zero.

XMT E

Enable Transmit Status Signal.

Indicates PCnet-ISA controller

transmit activity .

0 disables the signal, 1 enables

the signal.

RVPOL E

Enable Receive Polarity Signal.

Enables LED pin assertion when

receive polarity is correct on the

10BASE-T port. Clearing the bit

indicates

this

function

be ignored.

RCV E

Enable Receive Status Signal.

Indicates receive activity on the

network.

0 disables the signal, 1 enables

the signal.

JAB E

Enable Jabber Signal. Indicates

the PCnet-ISA controller is jab-

bering on the network.

0 disables the signal, 1 enables

the signal.

COL E

Enable Collision Signal. Indi-

cates collision activity on the

network.

0 disables the signal, 1 enables

the signal.

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