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US 8,286,039 B2Granted
Disabling outbound drivers for a last memory buffer on a memory channel
AssigneeIntel Corporation
InventorsPete D. Vogt, Dennis W. Brzezinski, Warren R. Morrow
Life of this patent
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Abstract
Memory apparatus and methods utilizing multiple bit lanes may redirect one or more signals on the bit lanes. A memory agent may include a redrive circuit having a plurality of bit lanes, a memory device or interface, and a fail-over circuit coupled between the plurality of bit lanes and the memory device or interface.
Claims4
A first memory buffer device, comprising:
- an outbound receiving logic to receive a first data from a first uni-directional link, the first uni-directional link to electrically couple the first memory buffer device with at least a host controller;
- an outbound redriving logic to drive the first data across a second uni-directional link, the second uni-directional link to electrically couple the first memory buffer device with at least a second memory buffer device, the outbound redriving logic further to disable driving the first data across the second uni-directional link if the second memory buffer device is not coupled with the second uni-directional link;
- an inbound receiving logic to receive a second data from a third uni-directional link, the third uni-directional link to electrically couple the first memory buffer device with the at least second memory buffer device;
- and
- an inbound redriving logic to drive the second data across a fourth uni-directional link, the fourth uni-directional link to electrically couple the first memory buffer device with the at least host controller.
2 more elements
Dependencies are inferred from the claim text.