阅读:1070回复:2
seaquester来取分
seaquester来取分
另:我找到了一个PCI2。3看了一下还是讲得很不清楚 只有CFC与CF8那有没有其它的呢? 还有这个CFC和CF8是在主板的什么上面? 北桥还是南桥 (pci2.3 http://www.sron.net/SoftView/SoftView_841.html) [编辑 - 3/10/04 by qccqqccq] |
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沙发#
发布于:2004-03-10 17:44
seaquester来取分 CF8和CFC是用来访问PCI的。其他的端口还有很多。 下面的内容摘自RBIL Viewer(Ralf Brown's Interrupt List) PORT 0CF8-0CFF - PCI Configuration Mechanism 1 - Configuration Registers 0CF8d -W configuration address port (see #P0944) 0CFCd RW configuration data port (when PORT 0CF8h bit 31 is set) Bitfields for PCI configuration address port: Bit(s) Description (Table P0944) 1-0 reserved (00) 7-2 configuration register number (see #00878) 10-8 function 15-11 device number 23-16 bus number 30-24 reserved (0) 31 enable configuration space mapping Note: configuration registers are considered DWORDs, so the number in bits 7-2 is the configuration space address shifted right two bits 至于它到底在哪儿,我也不知道 :P硬件方面的东西我不是太熟。 |
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板凳#
发布于:2004-03-15 11:40
不好意思出差去了才回来!谢谢你东西
[编辑 - 3/15/04 by qccqqccq] |
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