Appeal No. 1996-2195
Application 08/120,911
a local memory for holding instructions to be exe-
cuted by the instruction processor and data to be processed
thereby, and an access controller for controlling access to
said local memory;
a main cache for holding part of data held by said
local memory and a main cache controller connected to said
main cache and instruction processor, and said access control-
ler for controlling said main cache; and
a sending unit connected to said main cache for
sending data on the network and a receiving unit for receiving
data from the network;
a receive cache and a receive cache controller
connected to said receive cache, said receive unit and said
instruction processor and said access controller for control-
ling the receive cache so that said receive cache temporarily
stores data received by the receiving unit which is to be
stored in said local memory;
said main cache controller responding to a memory
write request provided by said instruction processor for first
data to be written into the local memory, so as to write said
write data into said main cache,
said main cache controller not writing said received
data into said main cache and said receive cache controller
not writing said first data requested by said memory write
request into said receive cache;
said main cache controller and said receive cache
controller both further responding to a common memory read
request initiated by said instruction processor unit for
second data held in said local memory so as to read the second
data requested by the read request from one cache which holds
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