Method and apparatus for determining actual write latency and accurately aligning the start of data capture with the arrival of data at a memory device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 24, 2004
Grant Date -
Dec 12, 2002
app pub date -
Jun 6, 2001
filing date -
Jun 6, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for accurately determining the actual arrival of data at a memory device relative to the write clock to accurately align the start of data capture and the arrival of the data at the memory device is disclosed. The actual time of arrival of data at the inputs to a memory device is determined by sending back-to-back write commands along with a predetermined data pattern to the memory device. The data pattern is stored in a register and any difference between the predicted arrival time of the data and the actual arrival time of the data is determined by logic circuitry. Any determined difference can then be compensated for by delaying the start of the capture of the data at the memory device, thereby accurately aligning the start of the data capture and the arrival of the data at the memory device.
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