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Title: Reliable voltage scaled links for compressed data

Abstract

Systems, apparatuses, and methods for reliably transmitting data over voltage scaled links are disclosed. A computing system includes at least first and second devices connected via a link. In one implementation, if a data block can be compressed to less than or equal to half the original size of the data block, then the data block is compressed and sent on the link in a single clock cycle rather than two clock cycles. If the data block cannot be compressed to half the original size, but if the data block can be compressed enough to include error correction code (ECC) bits without exceeding the original size, then ECC bits are added to the compressed block which is sent on the link at a reduced voltage. The ECC bits help to correct for any errors that are generated as a result of operating the link at the reduced voltage.

Inventors:
; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1632547
Patent Number(s):
10558606
Application Number:
16/118,172
Assignee:
Advanced Micro Devices, Inc. (Santa Clara, CA)
Patent Classifications (CPCs):
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03M - CODING
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
DOE Contract Number:  
AC52-07NA27344; B620717
Resource Type:
Patent
Resource Relation:
Patent File Date: 08/30/2018
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; 42 ENGINEERING

Citation Formats

Das, Shomit N., Tomei, Matthew, Ganapathy, Shrikanth, and Kalamatianos, John. Reliable voltage scaled links for compressed data. United States: N. p., 2020. Web.
Das, Shomit N., Tomei, Matthew, Ganapathy, Shrikanth, & Kalamatianos, John. Reliable voltage scaled links for compressed data. United States.
Das, Shomit N., Tomei, Matthew, Ganapathy, Shrikanth, and Kalamatianos, John. Tue . "Reliable voltage scaled links for compressed data". United States. https://www.osti.gov/servlets/purl/1632547.
@article{osti_1632547,
title = {Reliable voltage scaled links for compressed data},
author = {Das, Shomit N. and Tomei, Matthew and Ganapathy, Shrikanth and Kalamatianos, John},
abstractNote = {Systems, apparatuses, and methods for reliably transmitting data over voltage scaled links are disclosed. A computing system includes at least first and second devices connected via a link. In one implementation, if a data block can be compressed to less than or equal to half the original size of the data block, then the data block is compressed and sent on the link in a single clock cycle rather than two clock cycles. If the data block cannot be compressed to half the original size, but if the data block can be compressed enough to include error correction code (ECC) bits without exceeding the original size, then ECC bits are added to the compressed block which is sent on the link at a reduced voltage. The ECC bits help to correct for any errors that are generated as a result of operating the link at the reduced voltage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {2}
}

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Works referenced in this record:

Method and apparatus to lower operating voltages for memory arrays using error correcting codes
patent, August 2009