AM79C985 datasheet(25/48 Pages) AMD

No de pièce	AM79C985

Description	enhanced Integrated Multiport Repeater Plus (eIMR??

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Fabricant	AMD [Advanced Micro Devices]

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Am79C985

25

PRELIMINARY

Table 6.

Management Port Command Summary

Commands

SI Data

SO Data

Single eIMR+

Device

SO Data

Primary

SO Data

Secondary

Set (Write Commands)

eIMR+ Chip Programmable Options

0000 1CSA

Alternate AUI Partitioning Algorithm

0001 1111

Alternate TP Partitioning Algorithm

0001 0000

Primary AUI Port Disable

0010 1111

Secondary AUI Port Disable

0010 1110

Primary AUI Port Enable

0011 1111

Secondary AUI Port Enable

0011 1110

TP Port Disable

0010 0###

TP Port Enable

0011 0###

Disable Link Test Function (per TP port)

0100 0###

Enable Link Test Function (per TP port)

0101 0###

Disable Link Pulse (per TP port)

0100 1###

Enable Link Pulse (per TP port)

0101 1###

Disable Automatic Receiver Polarity Reversal

(per TP port)

0110 0###

Enable Automatic Receiver Polarity Reversal

(per TP port)

0111 0###

Disable Receiver Extended Distance Mode

(Per TP port)

0110 1###

Enable Receiver Extended Distance Mode

(Per TP port)

0111 1###

Disable Software Override of LEDs

(Per Port - AUI & TP)

1001 ####

Enable Software Override of Bank-A LEDs

(Per Port - AUI & TP, Global)

1011 ####

Enable Software Override of Bank-B LEDs

(Per Port - AUI & TP, Global)

1100 ####

Software Override LED Blink Rate

1110 1###

Get (Read Commands)

AUI Port Status (B, S, and L Cleared)

1000 1111

PBSL 0000

0000 PBSL

PBSLP PBSLS

AUI Port Status (B Cleared)

1000 1101

PBSL 0000

0000 PBSL

PBSLP PBSLS

AUI Port Status (S, L, Cleared)

1000 1011

PBSL 0000

0000 PBSL

PBSLP PBSLS

AUI Port status (None Cleared)

1000 1001

PBSL 0000

0000 PBSL

PBSLP PBSLS

TP Port Partitioning Status

1000 0000

0000 C3..C0

0000 C7..C4

C7..C0

Bit Rate Error Status of TP Ports

1010 0000

0000 E3..E0

0000 E7..E4

E7..E0

Link Test Status of TP Ports

1101 0000

0000 L3..L0

0000 L7..L4

L7..L0

Receive Polarity Status of TP Ports

1110 0000

0000 P3..P0

0000 P7..P4

P7..P0

MJLP Status

1111 0000

M000 0000

0000 M000

MP000 MS000

Version

1111 1111

0000 0011

0011P 0011S

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