Phantom resource memory address mapping system
AssigneeCompaq Computer Corporation
InventorStephen Richard Van Doren
Life of this patent
Estimating the term…
Abstract
A phantom-resource memory address mapping system reduces access latency in a memory configured as a stacked-hybrid or filly-interleaved hierarchy of memory resources. The address mapping system comprises memory access circuitry having a topology that combines an interleaved-based translation function in parallel with a stacked-based translation operation. The translation functions operate in conjunction with a phantom-resource memory mapping technique. The memory address mapping system reduces the latency incurred when accessing data in response to a memory reference address, while allowing flexibility with respect to the sizes and amounts of memory resources (e.g., modules, arrays and banks) that may be populated in a data processing system.
Claims24
An address mapping system for reducing latency incurred when accessing data stored on memory resources of a data processing system in response to a memory reference request issued by a processor, the memory resources configured as one of a stacked-hybrid and a fully-interleaved hierarchy of memory resources, the address mapping system comprising:
- memory access circuitry having a topology that comprises interleaved-based translation circuitry and stacked-based translation circuitry, the topology further comprising a primary memory access path that includes the interleave-based translation circuitry.
A memory address mapping system for reducing latency incurred when accessing data stored on memory resources of a data processing system in response to a memory reference request issued by a processor, the address mapping system comprising:
- memory access circuitry including a translation stage coupled to an arbitration stage, the translation stage mapping the memory reference request to an arbitration request directed to a fixed interleave configuration of logical interleave units.
Dependencies are inferred from the claim text.