beautypg.com

Table 4.1 pci configuration register map, Pci configuration register map, Table 4.1 – Avago Technologies LSI53C896 User Manual

Page 114

background image

4-2

Registers

Version 3.3

Copyright © 1998–2003 by LSI Logic Corporation. All rights reserved.

All PCI-compliant devices, such as the LSI53C896, must support the

Vendor ID

,

Device ID

,

Command

, and

Status

registers. Support of other

PCI-compliant registers is optional. In the LSI53C896, registers that are
not supported are not writable and return all zeros when read. Only those
registers and bits that are currently supported by the LSI53C896 are
described in this chapter.

Note:

Reserved bits should not be accessed.

Registers: 0x00–0x01

Vendor ID
Read Only

VID

Vendor ID

[15:0]

This 16-bit register identifies the manufacturer of the
device. The Vendor ID is 0x1000.

Table 4.1

PCI Configuration Register Map

31

16 15

0

Device ID

Vendor ID

0x00

Status

Command

0x04

Class Code

Revision ID (Rev ID)

0x08

Not Supported

Header Type

Latency Timer

Cache Line Size

0x0C

Base Address Register Zero (I/O)

0x10

Base Address Register One (MEMORY)

0x14

Base Address Register One (MEMORY)

0x18

Base Address Register Two (SCRIPTS RAM)

0x1C

Base Address Register Two (SCRIPTS RAM)

)

0x20

Not Supported

0x24

Reserved

0x28

Subsystem ID

Subsystem Vendor ID

0x2C

Expansion ROM Base Address

0x30

Reserved

Capabilities Pointer

0x34

Reserved

0x38

Max_Lat

Min_Gnt

Interrupt Pin

Interrupt Line

0x3C

Power Management Capabilities (PMC)

Next Item Pointer

Capability ID

0x40

Data

Bridge Support Exten-

sions (PMCSR_BSE)

Power Management Control/Status (PMCSR)

0x44

15

0

VID

0

0

0

1

0

0

0

0

0

0

0

0

0

0

0

0