Computer hybrid memory including DRAM and EDRAM memory components, with secondary cache in EDRAM for DRAM
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 23, 1999
Grant Date -
N/A
app pub date -
Mar 14, 1996
filing date -
Mar 14, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computer system with a hybrid main memory which includes both EDRAM and DRAM, with a DRAM cache provided within a designated portion of the EDRAM portion of the main memory. Read requests are handled by copying data being read from DRAM into a cache portion of EDRAM under the direction of a pseudo cache controller and decoder which converts the DRAM address to a EDRAM address corresponding to the cache location of EDRAM. Read 'hit' requests are responded to by reading data directly from the cache portion of EDRAM. Write requests to DRAM are, for purposes of cache coherency when a copy of the address being written to is present in the EDRAM cache portion, accomplished by writing data both to DRAM and overwriting the stale data existing in the cache portion of EDRAM.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully