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Abstract

Systems and methods are described for resolving certain interoperability issues among multiple types of memory modules in the same memory subsystem. The system provides a single data load DIMM for constructing a high density and high speed memory subsystem that supports the standard JEDEC RDIMM interface while presenting a single load to the memory controller. At least one memory module includes one or more DRAM, a bi-directional data buffer and an interface bridge with a conflict resolution block. The interface bridge translates the CAS latency (CL) programming value that a memory controller sends to program the DRAMs, modifies the latency value, and is used for resolving command conflicts between the DRAMs and the memory controller to insure proper operation of the memory subsystem.

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First Claim