Rcv56hcf pci/cardbus modem designer’s guide, Software interface – Hayes Microcomputer Products RCV56HCF User Manual

Page 59

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RCV56HCF PCI/CardBus Modem Designer’s Guide

1129

ROCKWELL PROPRIETARY INFORMATION

5-1

5. SOFTWARE INTERFACE

5.1 PCI Configuration Registers

The PCI Configuration registers are located in the BIF. Table 5-1 identifies the configuration register contents that are
supported in the BIF device:

Table 5-1. PCI Configuration Registers

Bit

Offset

(Hex)

31:24

23:16

15:8

7:0

0

Device ID

Vendor ID

4

Status

Command

8

Class Code

Revision ID

C

Not Implemented

Header Type

Latency Timer

Not Implemented

10

Base Address 0 - Memory (BIF)

14

Unused Base Address Register

18

Unused Base Address Register

1C

Unused Base Address Register

20

Unused Base Address Register

24

Unused Base Address Register

28

CIS Pointer

2C

Subsystem ID

Subsystem Vendor ID

30

Not Implemented

34

Reserved

38

Reserved

3C

Max Latency

Min Grant

Interrupt Pin

Interrupt Line

5.1.1 Vendor ID Field

This field is read-only and is loaded from the serial EEPROM after reset events. The default value for the Vendor ID is 127a.

5.1.2 Device ID Field

This field is read-only and is loaded from the serial EEPROM after reset events.

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