Appeal No. 1997-0917
Application 08/309,565
the broadcast instruction from the controller or the contents
of the configuration register to select one of the four data
lines and applying the data from the source output port of the
multiplexer unit thereto. (Specification-pages 4 and 5.)
Representative independent claim 1 is reproduced as
follows:
1. In a SIMD architecture having a two dimensional array
of processing elements, where a controller broadcasts at least
one broadcast instruction to all processing elements in the
array, a dynamically reconfigurable switching means useful to
connect four of the processing elements in the array into a
group in accordance with either the broadcast instruction of
the controller or a special communication instruction held in
one selected processing element of the group, the switch
comprising:
at least one dataline connected to each of the processing
elements in the group;
a multiplexer means connected to each data line and to
the controller and to a configuration register external to any
processing element of the group, said configuration register
controllable by any of the processing elements in the group,
for loading the special communication instruction from the one
selected processing element in the group into the
configuration register and to operate in accord with either
the broadcast instruction from the controller or the contents
of the configuration register to select one of the data lines
as a source of data and applying the data therefrom to a
source output port; and
a demultiplexer means connected to each data line and to
the controller and to said configuration register, and
directly connected to a source output port of the multiplexer
means, to operate in accord with either the broadcast
3
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