Appeal No. 2000-1187 Page 2
Application No. 08/723,174
We reverse.
BACKGROUND
The appellants’ invention is generally directed to
peripheral component interconnect (PCI) systems and in
particular, to selection of peripheral devices attached to the
system via expansion slots provided by PCI-PCI bridges. Each
device is selected using address data lines connected to the
input/output of a bus bridge while each data line is connected to
a pin of a pin out grid array in each of the expansion slots.
The ID select of each device is connected to a pin corresponding
to one of the address data lines (specification, p. 6).
Alternatively, a logic gate is located between a bridge and an
expansion slot with its inputs connected to address data line 0
and the one to which the ID select of the device is connected.
The output of a logic gate provides the ID select of the target
device (specification, p. 8).
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