Intel 82558 Manuale Utente

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15

Scrambler Bypass

RW

1 = Bypass Scrambler
0 = Normal operation

0

14

4/5 Bypass

RW

1 = Bypass 4-bit to 5-bit
0 = Normal operation

0

13

Force Transmit H Pattern

RW

1 = Force H pattern
0 = Normal operation

0

12

Force 34 Transmit Pattern RW

1 = Force 34 pattern
0 = Normal operation

0

11

Good Link

RW

1 = 100BASE-TX good link indication, forcing to 
ASD output
0 = Normal operation

0

9

MDI  Tristate

RW

1 = Tri-state MDI interface
0 = Normal operation

0

8

Dynamic Power Down 
Disable

RW

1 = Disable Dynamic Power Down.
0 = Normal operation

0

7

Auto-Negotiation 
Loopback

RW

1 = Auto-negotiation loopback
0= Auto negotiation normal Mode.

0

6

Reserved

This bit is reserved.

0

5

Filter  Bypass

RW

1 = Bypass filter
0 = Normal operation

0

4

Auto-Polarity Disable

RW

1 = Disable auto-polarity
0 = Normal operation

0

3

Squelch Test Disable

RW

1 = Disable 10BASE-T squelch test
0 = Normal squelch operation

0

2

Extended Squelch

RW

This bit indicates extended squelch control

0

1

Link Integrity Disable

RW

1 = Disable link integrity operation
0 = Normal link integrity operation

0

0

Jabber Function disable

RW

1 = Disable jabber function
0 = Normal jabber operation.

0