RTL8029AS Ver la hoja de datos (PDF) - Unspecified

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RTL8029AS

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

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RTL8029AS Preliminary

SVID: Subsystem Vendor ID Register (2C-2DH; Type=R)

The Subsystem Vendor ID register is a 16-bit register that uniquely identifies the add-in

board or subsystem where the PCI device resides. The default value is 10ECH.

SID: Subsystem ID Register (2E-2FH; Type=R)

The Subsystem ID register is a 16-bit register that are vendor specific. The default value

is 8029H.

BROMBAR: Boot ROM Base Address Register (33-30H; Type=R/W except

Bit12-1=R)

The Base Boot ROM Address register is a 32-bit register that determines the Boot ROM space

mapping of the RTL8029AS controller.

Bit

31-15

14-11

Symbol

BMR31-15

BROMSIZE

Description

These bits are used to set Boot ROM base address for Boot ROM access.

These bits indicate how many Boot ROM spaces to be supported.

BS1

BS0

Description

0

0

No BROM : BROMEN=0(R)

BMR11,12=0,0(R)

0

1

8K BROM : BROMEN=0(R/W)

BMR11,12=0,0(R)

BMR13=0(R/W)

BMR14=0(R/W)

1

0

16K BROM : BROMEN=0(R/W)

BMR11,12=0,0(R)

BMR13=0(R)

BMR14=0(R/W)

1

1

32K BROM : BROMEN=0(R/W)

BMR11,12=0,0(R)

BMR13=0(R)

BMR14=0(R)

10-1

-

Reserved area. Read as 0, write operation has no effect.

0

BROMEN BROM ENable bit.

0 : disable

1 : enable

ILR: Interrupt Line Register (3CH; Type=R/W)

The Interrupt Line register is an 8-bit register used to communicate with the routing of the

interrupt. It is written by the POST software to set interrupt line for the RTL8029AS controller.

ILR = 00-0FH

IPR: Interrupt Pin Register (3DH; Type=R)

The Interrupt Pin register is an 8-bit register indicating the interrupt pin used by the RTL8029AS

controller. The RTL8029AS controller uses the INTA interrupt pin. IPR = 01H

LS009.0

24

1997.01.16

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