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US 7,397,725 B2Granted
Single-clock, strobeless signaling system
AssigneeRambus Inc.
InventorDonald C. Stark
Life of this patent
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Abstract
A signaling system includes a signaling path, a master device coupled to the signaling path, a slave device coupled to the signaling path, and a clock generator. The slave device includes timing circuitry to generate an internal clock signal having a phase offset relative to a clock signal supplied by the clock generator, the phase offset being determined at least in part by a signal propagation time on the signal path.
Claims21
An integrated circuit package comprising:
- a signaling path;
- a memory controller coupled to the signaling path;
- a memory device coupled to the signaling path;
- a clock generator coupled to the memory controller and the memory device to generate a first clock signal;
- and
- calibration circuitry to determine signal propagation times between the memory controller and the memory device over the signaling path, the calibration circuitry including timing circuitry to generate a second clock signal having a first phase offset, relative to the first clock signal, that is based at least in part by a first signal propagation time between the memory controller and the memory device over the signaling path.
3 more elements
Dependencies are inferred from the claim text.