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VT82C596 数据表(PDF) 34 Page - List of Unclassifed Manufacturers |
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VT82C596 数据表(HTML) 34 Page - List of Unclassifed Manufacturers |
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34 / 96 page ![]() VT82C596B Revision 0.3 June 17, 1999 -28- Configuration Space I/O 7HFKQRORJLHV ,QF :H &RQQHFW :H &RQQHFW 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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