參數(shù)資料
型號(hào): VT82C586B
廠商: Electronic Theatre Controls, Inc.
英文描述: PCI INTEGRATED PERIPHERAL CONTROLLER
中文描述: 整合的周邊控制器的PCI
文件頁(yè)數(shù): 26/69頁(yè)
文件大小: 393K
代理商: VT82C586B
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VT82C586B
Revision 1.0
May 13, 1997
-
20-
Configuration Space I/O
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
31
Configuration Space Enable
0
Disabled .................................................default
1
Convert configuration data port writes to
configuration cycles on the PCI bus
30-24 Reserved
........................................ always reads 0
23-16 PCI Bus Number
Used to choose a specific PCI bus in the system
15-11 Device Number
Used to choose a specific device in the system
10-8 Function Number
Used to choose a specific function if the selected
device supports multiple functions
7-2
Register Number
Used to select a specific DWORD in the device’s
configuration space
1-0
Fixed
........................................ always reads 0
Port CFF-CFC - Configuration Data .............................. RW
Refer to PCI Bus Specification Version 2.1 for further details
on operation of the above configuration registers.
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