Bidirectional data transfer protocol primarily controlled by a peripheral device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 11, 2001
Grant Date -
N/A
app pub date -
Jul 23, 1993
filing date -
Jul 23, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus are provided for bidirectionally transmitting a plurality of data values between a first processor and a second processor. Each data value represents a respective plurality of data bits. A direction indicating signal is formed and transmitted from the first processor to the second processor. The direction indicating signal enables the second processor to transfer data to the first processor when the direction indicating signal is in a first state. The direction indicating signal notifies the second processor that the first processor is ready to transfer data to the second processor when the direction indicating signal is in a second state. A clock signal is formed and transmitted from the first processor to the second processor. The clock signal is asynchronously changed from a first state to a second state when each respective one of the plurality of data values is transferred. The data values are transmitted between the processors in a direction indicated by the direction indicating signal. The clock signal is reset to the first state after each respective data signal is transferred.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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