Memory buffers and modules supporting dynamic point-to-point connections

Patent metadata

Field	Value
Publication number	US-9502085-B2
Application number	US-201514672442-A
Country	US
Kind code	B2
Filing date	Mar 30, 2015
Priority date	Aug 5, 2011
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

A memory module comprises a module interface having module data-group ports to communicate data as respective data groups, a command port to receive memory-access commands, a first memory device including a first device data-group port, a second memory device including a second device data-group port, and a signal buffer coupled between the module interface and each of the first and second devices. In a first mode, in response to the memory-access commands, the signal buffer communicates the data group associated with each of the first and second device data-group ports via a respective one of the module data-group ports. In a second mode, in response to the memory-access commands, the signal buffer alternatively communicates the data group associated with the first device data-group port or the data group associated with the second device data-group port via the same one of the module data-group ports.

First claim

What is claimed is:

1. A method for configuring a data width of a memory module, the memory module having memory devices and module data-group ports to communicate respective data groups, the method comprising:
sensing a value indicative of the data width;
responsive to a first value indicative of a first data width, coupling each module-data group port to a respective one of the memory devices;
responsive to a second value indicative of a second data width, alternatively coup…

Assignees

• Rambus Inc

Inventors

• Shaeffer Ian

Classifications

• G11C7/10 Primary

  Physics · mapped topic

• G11C5/04

  Physics · mapped topic

• G11C7/1075 Primary

  Physics · mapped topic

• Y02D10/00

  Cross-Sectional Technologies · mapped topic

• G06F13/4273

  Physics · mapped topic