Interface circuit for converting a serial data stream to a parallel data scheme with data strobe preamble information in the serial data stream
AssigneeRambus Inc.
InventorDongyun Lee
Life of this patent
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Abstract
Technologies for converting serial data stream to a parallel data and strobe scheme with data strobe preamble information in the serial data stream are described. A device includes an interface circuit that receives a serial data stream and converts the serial data stream to parallel data and a data strobe (DQS) signal associated with the parallel data using N-bit header fields inserted into the serial data stream. The N-bit header fields specify DQS preamble information for the parallel data.
Claims20
A data buffer device comprising:
- a first serial interface;
- a first parallel interface;
- and
- an interface circuit coupled between the first serial interface and the first parallel interface, wherein the interface circuit is to:
- receive a serial data stream from the first serial interface, the serial data stream comprising header fields inserted into the serial data stream, wherein the header fields specify data strobe (DQS) preamble information;
- convert the serial data stream to parallel data and a DQS signal associated with the parallel data using the header fields;
- and
- output the parallel data and the DQS signal on the first parallel interface.
A memory system comprising:
- a memory device that operates according to a parallel data and strobe scheme;
- and
- an interface circuit to receive a serial data stream from a host device, the serial data stream comprising header fields that specify data strobe (DQS) preamble information, to convert the serial data stream to the parallel data and a DQS signal associated with the parallel data using the header fields, and to output the parallel data and the DQS signal to the memory device.
A method of operating an interface circuit of a data buffer device, the method comprising:
- receiving, from a host device, a serial data stream over a first serial interface, the serial data stream comprising header fields inserted into the serial data stream, wherein the header fields specify data strobe (DQS) preamble information;
- converting, using the header fields, the serial data stream to parallel data and a DQS signal associated with the parallel data;
- and
- outputting, to a memory device, the parallel data and the DQS signal over a first parallel interface.
Dependencies are inferred from the claim text.