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.
Claims12
A source-synchronous data receiver for receiving data from a data source a variable number of clock cycles after the initiation of a command to retrieve said data from the source, and for making said data available at an output of the source-synchronous data receiver a programmable predetermined number of clock cycles after the initiation of the command to retrieve said data.
A source-synchronous data receiver for receiving data from a data source a variable number of clock cycles after the initiation of a command to retrieve said data from the source, and for making said data available at an output of the source-synchronous data receiver a programmable predetermined number of clock cycles after the initiation of the command to retrieve said data, comprising:
- data storing means for storing data received from the data source in a plurality of individually accessible storage locations;
- first pointer means for selectively pointing to and steering data received from the data source to said storage locations of said data storing means;
- second pointer means and multiplexer means for selectively pointing to and outputting data stored in said storage locations of said data storing means so that said data is available at the output said predetermined number of clock cycles after the initiation of the command to retrieve said data.
Dependencies are inferred from the claim text.