A plurality of memory modules interface through a daisy-chain providing a point-to-point connection for each memory module. The first and the last memory module in the daisy chain each connect to a separate memory controller port forming a ring circuit. A distinct set of signals connect the memory modules...http://www.google.com.au/patents/US6625687?utm_source=gb-gplus-sharePatent US6625687 - Memory module employing a junction circuit for point-to-point connection isolation, voltage translation, data synchronization, and multiplexing/demultiplexing
