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RTL8029AS

Realtek PCI Full-Duplex Ethernet Controller with built-in SRAM

Realtek Semiconductor 

RTL8029AS Preliminary

5. REGISTER DESCRIPTIONS

The registers in RTL8029AS controller can be roughly divided into two groups by their address and

functions -- one for NE2000, the other for PCI Configuration Space.

5.1. Group 1: NE2000 Registers

This group includes 4 pages of registers which are selected by bit PS0 & PS1 in the CR register.

Each page contains 16 registers. Besides those registers compatible with NE2000, the RTL8029AS

controller defines some registers for software configuration and feature enhancement.

5.1.1. Register Table

No (Hex)

Page0

[R]

[W]

00

CR

CR

01

CLDA0

PSTART

02

CLDA1

PSTOP

03

BNRY

BNRY

04

TSR

TPSR

05

NCR

TBCR0

06

FIFO

TBCR1

07

ISR

ISR

08

CRDA0

RSAR0

09

CRDA1

RSAR1

0A

8029ID0 RBCR0

0B

8029ID1 RBCR1

0C

RSR

RCR

0D

CNTR0

TCR

0E

CNTR1

DCR

0F

CNTR2

IMR

10-17 Remote DMA Port

18-1F Reset Port

Page1

[R/W]

CR

PAR0

PAR1

PAR2

PAR3

PAR4

PAR5

CURR

MAR0

MAR1

MAR2

MAR3

MAR4

MAR5

MAR6

MAR7

Page2

[R]

CR

PSTART

PSTOP

-

TPSR

-

-

-

-

-

-

-

RCR

TCR

DCR

IMR

Page3

[R]

[W]

CR

CR

9346CR 9346CR

-

-

CONFIG0

-

-

-

CONFIG2 CONFIG2

CONFIG3 CONFIG3

-

-

-

-

-

HLTCLK

-

-

-

-

-

-

-

-

8029ASID0

-

8029ASID1

-

Notes: "-" denotes reserved. Registers with names typed in bold italic format are RTL8029AS

defined registers and are not supported in a standard NE2000 adapter.

LS009.0

10

1997.01.16

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