Patent
1996-12-13
1998-06-30
Sheikh, Ayaz R.
395282, 395555, 395556, G06F 108
Patent
active
057747067
ABSTRACT:
A PCI local processing system is operated at 50 MHz using 5 V connectors for add-in boards and a 5 V signaling environment with an appropriate timing budget. Only the 5 V add-in boards may be used for 50 MHz adapters installed in the bus. The bus is backward compatible with existing 33 MHz PCI specifications and operates at 33 MHz if a 33 MHz adapter is installed, and will operate at 50 MHz if only 50 MHz adapters and/or 66 MHz adapters which utilize the universal boards are installed.
REFERENCES:
patent: 5559968 (1996-09-01), Stancil et al.
patent: 5627482 (1997-05-01), Lamatsh
patent: 5721935 (1998-02-01), DeSchepper et al.
PCI Local Bus Specification, Revision 2.1 (PCI Special Interest Group, Jun. 1, 1995).
Kelley Richard A.
Neal Danny M.
Dillon Andrew J.
Henkler Richard A.
International Business Machines - Corporation
Seto Jeffrey K.
Sheikh Ayaz R.
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