There is disclosed a bus interface unit for transferring data between a plurality
of bus devices. The bus interface unit comprises: 1) a first bus device interface
comprising: a) a first incoming request bus for receiving request packets from
a first one of the plurality of bus devices; b) a first outgoing request bus for
transmitting request packets to the first bus device; c) a first incoming data
bus for receiving data packets from the first bus device; and d) a first outgoing
data bus for transmitting data packets to the first bus device; and 2) a second
bus device interface comprising: a) a second incoming request bus for receiving
request packets from a second one of the plurality of bus devices; b) a second
outgoing request bus for transmitting request packets to the second bus device;
c) a second incoming data bus for receiving data packets from the second bus device;
and d) a second outgoing data bus for transmitting data packets to the second bus device.
