vt82c586a ETC-unknow, vt82c586a Datasheet - Page 21

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vt82c586a

Manufacturer Part Number
vt82c586a
Description
Integrated Peripheral Controller
Manufacturer
ETC-unknow
Datasheet

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Configuration Space I/O
Mechanism #1
These ports respond only to double-word accesses. Byte or
word accesses will be passed on unchanged.
Port CFB-CF8 - Configuration Address ......................... RW
Port CFF-CFC - Configuration Data .............................. RW
Refer to PCI Bus Specification Version 2.1 for further details
on operation of the above configuration registers.
Preliminary Revision 0.1 October 13, 1996
30-24 Reserved
23-16 PCI Bus Number
15-11 Device Number
10-8 Function Number
7-2
1-0
31
Configuration Space Enable
Used to choose a specific PCI bus in the system
Used to choose a specific device in the system
Used to choose a specific function if the selected
device supports multiple functions
Register Number
Used to select a specific DWORD in the device’s
configuration space
Fixed

0
1
Disabled .................................................default
Convert configuration data port writes to
configuration cycles on the PCI bus
........................................ always reads 0
........................................ always reads 0
-15-
Configuration Space I/O
VT82C586A

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