Technique for supporting semi-compliant PCI devices behind a PCI-to-PCI bridge
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United States of America Patent
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Mar 2, 1999
Issued Date -
N/A
app pub date -
Aug 7, 1997
filing date -
Jan 23, 1996
priority date (Note) -
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Abstract
Method and apparatus for detecting the presence of a semi-compliant PCI device in a secondary expansion slot of a PC and instructing the user to reinsert the device into one of the primary slots are disclosed. In one embodiment, upon detection of a semi-compliant PCI device in a secondary slot, a video image instructing the user to reinsert the device into one of the primary slots is displayed on a display of the PC. Operation remains suspended until the device is relocated to a primary slot. In a presently preferred embodiment, a hardware enhancement to a PCI-to-PCI bridge connecting a primary PCI bus to a secondary BCI bus enables the device to operate flawlessly on the secondary PCI bus, such that the user remains unaware of the otherwise undesirable situation.
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