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RTL8139D

SINGLE-CHIP MULTI-FUNCTION 10/100Mbps ETHERNET CONTROLLER WITH POWER MANAGEMENT

Unspecified 

RTL8139DL

Datasheet

5.18. Basic Mode Control Register

(Offset 0062h-0063h, R/W)

Bit

15

14

13

12

11-10

9

8

7-0

Name

Reset

-

Spd_Set

Auto Negotiation

Enable

(ANE)

-

Restart Auto

Negotiation

Duplex Mode

-

Description/Usage

This bit sets the status and control registers of the PHY(register

0062-0074H) in a default state. This bit is self-clearing. 1 = software

reset; 0 = normal operation.

Reserved

This bit sets the network speed. 1 = 100Mbps; 0 = 10Mbps. This bit‘s

initial value comes from 93C46.

This bit enables/disables the NWay auto-negotiation function.

Set to 1 to enable auto-negotiation, bit13 will be ignored.

Set to 0 disables auto-negotiation, bit13 and bit8 will determine the

link speed and the data transfer mode, respectively.

This bit‘s initial value comes from 93C46.

Reserved

This bit allows the NWay auto-negotiation function to be reset.

1 = re-start auto-negotiation; 0 = normal operation.

This bit sets the duplex mode. 0 = normal operation ; 1 = full-duplex.

This bit‘s initial value comes from 93C46.

If bit12 = 1, read = status write = register value.

If bit12 = 0, read = write = register value.

Reserved

Default/Attribute

0, RW

-

0, RW

0, RW

-

0, RW

0, RW

-

Single Chip Multifunction 10/100 Ethernet Controller w/Power Management 25 Track ID: JATR-1076-21 Rev. 1.2

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