Source-synchronous receiver having a predetermined data receive time
AssigneeHewlett-Packard Development Company, L.P.
InventorsGary L. Taylor, Carson D. Henrion
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Abstract
A source-synchronous data receiver includes a storage device for sequentially storing data received from a data source, a data output device for sequentially outputting the data that is stored in the storage device, and a control for controlling the data output device, so that the data output device makes available particular data previously stored by the data storage device a programmable predetermined number of clock states after data is called for, e.g., a read command to the data source is initiated.
Claims11
A source-synchronous data receiver having a constant data receive time for receiving data from a data source which receives a master clock signal from said data receiver and has a variable data output delay, said receiver comprising:
- means for storing data received from the data source;
- means for selectively outputting data stored in said data storing means;
- and,
- controlling means for holding the master clock signal to the data source for a predetermined period to halt a signal from the data source for enabling said data storing means to store data from the data source, and generating a reset signal after said predetermined period to release said master clock signal, reset said data storing means to store data from the data source, and reset said data outputting means to output particular data stored by said data storing means a predetermined number of clock states after said data storing means has been reset to store said particular data.
Dependencies are inferred from the claim text.