Multi-band interconnect for inter-chip and intra-chip communications
AssigneeThe Regents of the University of California
InventorsMau-Chung Chang, Sai-Wang Tam, Gyung-Su Byun, Yanghyo Kim, Kanit Therdsteerasukdi, Jeremy Ir, Glenn Reinman, Jingsheng Cong
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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.
Claims50
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, including a baseband and at least one amplitude shift keyed RF band, are simultaneously communicated from said first integrated circuit to the at least said second integrated circuit.
An apparatus for memory interfacing, comprising:
- a baseband receiver of a first frequency within a second integrated circuit configured for connection to a transmission line adapted for connection to a first integrated circuit;
- wherein said baseband receiver is configured for outputting a digital baseband signal in response to receiving and converting a received baseband signal through said transmission line;
- and
- at least one RF receiver, configured for connection to said transmission line for receiving and converting an amplitude shift keyed (ASK) RF signal having a carrier at a second frequency to a digital RF band output;
- wherein multiple bands, including a baseband and at least one amplitude shift keyed RF band, are simultaneously communicated from the first integrated circuit to said second integrated circuit.
A system for memory interfacing, comprising:
- a first integrated circuit device;
- a second integrated circuit device;
- a transmission line adapted for connection between said first integrated circuit device and said second integrated circuit device;
- a baseband transmitter at a first frequency within said first integrated circuit device and a baseband receiver within said second integrated circuit device, or said baseband transmitter at a first frequency within said second integrated circuit device and said baseband receiver within said first integrated circuit device;
- wherein said baseband transmitter is configured for outputting a baseband signal in response to receipt of a first data stream;
- and
- at least one RF transmitter within said first integrated circuit device and/or said second integrated circuit device having a carrier at a second frequency which is amplitude shift keyed (ASK) and configured for connection to said transmission line;
- wherein multiple bands, including a baseband and at least one amplitude shift keyed RF band, are simultaneously communicated between said first integrated circuit device and said second integrated circuit device.
An apparatus for chip-to-chip memory interfacing, comprising:
- at least one baseband transmitter at a first frequency within a first integrated circuit configured for connection to an off-chip transmission line;
- wherein said at least one 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 within a second integrated circuit coupled to said off-chip transmission line, and having a carrier at a second frequency modulated by amplitude shift keying (ASK) in response to receipt of a second data stream;
- wherein simultaneous bi-directional communication of said first data stream and said second data stream over multiple bands is performed between said first integrated circuit and said second integrated circuit.
A system for chip-to-chip communication between integrated circuits, comprising:
- at least one baseband transmitter at a first frequency within a first integrated circuit configured for connection to a differential pair of off-chip transmission lines adapted for connection to a second integrated circuit;
- wherein said at least one 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, within said first integrated circuit or said second integrated circuit configured for amplitude shift keying (ASK) of a carrier at a second frequency which is coupled to said pair of off-chip transmission lines;
- wherein multiple bands, including a baseband and at least one amplitude shift keyed RF band, are simultaneously communicated chip-to-chip between integrated circuits.
An apparatus for chip-to-chip memory interfacing, comprising:
- a memory controller having multiple cores configured for communicating with multiple memory devices;
- a baseband receiver in each of said multiple cores in said memory controller is coupled to at least one of a plurality of differential transmission lines;
- and
- a plurality of RF transmitters, configured for amplitude shift keying (ASK) of a carrier generated from a voltage controlled oscillator shared between said plurality of RF transmitters, with each of said plurality of RF transmitters coupled to at least one of said plurality of differential transmission lines;
- and
- wherein said memory controller communicates with said multiple memory devices over each of said plurality of differential transmission lines using simultaneous transmissions which include a baseband and at least one amplitude shift keyed RF band.
A memory module, comprising:
- an interface router having a multiband interconnection with simultaneous baseband and amplitude shift keyed RF band transmissions for receiving data and address information from outside of said memory module;
- and
- a plurality of memory devices within said memory module coupled to said interface router;
- wherein said data and address information are received over the multiband interconnection with simultaneous baseband and amplitude shift keyed RF band transmissions and communicated with said plurality of memory chips.
Dependencies are inferred from the claim text.