Multi-band interconnect for inter-chip and intra-chip communications

Abstract

Systems, apparatus, modules, and methods of communicating with memory devices utilizing multi-band communication containing a baseband and one or more amplitude shift keyed (ASK) RF channels over each differential pair of off-chip transmission lines. Configurations are described for interfacing between microprocessors, or controllers and memory devices or modules, and within a DIMM and its DRAM devices, and between multiple DIMM memory modules.

We claim: 
     
         1 . An apparatus for memory interfacing, comprising:
 a baseband transmitter at a first frequency within a first integrated circuit configured for connection to a transmission line adapted for connection to at least a second integrated circuit;   wherein said baseband transmitter is configured for outputting a baseband signal in response to receipt of a first data stream within said first integrated circuit; and   at least one RF transmitter having a carrier at a second frequency which is amplitude shift keyed (ASK) and configured for connection to said transmission line;   wherein multiple bands are simultaneously communicated from said first integrated circuit to at least said second integrated circuit.