摘要:
Methods and apparatus are provided for a system for aligning data. The apparatus comprises a demultiplexing component adapted to bifurcate a double data rate (DDR) data stream into a first single data rate (SDR) data stream and a second SDR data stream, a bit detection component coupled to the demultiplexing component and adapted to compare bit values between the first and second SDR data streams and generate a first signal in response to detection of a predetermined arrangement of bits, a delay component adapted to receive the DDR data stream and perform a delay operation on the DDR data stream to create a delayed data stream, and a data alignment component coupled to the demultiplexing component, the delay component, and to the bit detection component, the data alignment component being adapted to place the delayed data stream in alignment in response to the first signal.
摘要:
A system for aligning data is provided. The system comprises a demultiplexing component adapted to bifurcate a double data rate (DDR) data stream into first and second single data rate (SDR) data streams, a delay architecture adapted to generate delayed SDR data streams from the SDR data streams, a logic circuit adapted to analyze the SDR data streams and delayed SDR data streams to detect a predetermined bit pattern conveyed in the DDR data stream and to indicate detection of the predetermined bit pattern, and a data aligning component adapted to determine the number of intervening bits between occurrences of the predetermined bit pattern and to frame the intervening bits, thereby producing aligned data.
摘要:
Methods and apparatus are provided for a system for aligning data. The apparatus comprises a demultiplexing component adapted to bifurcate a DDR data stream into first and second SDR data streams, a sequence detection component coupled to the demultiplexing component and adapted to detect a pattern of sequential bit values in the first SDR data stream, and a data alignment component coupled to the demultiplexing component and to the sequence detection component, the data alignment component adapted to place the second SDR data stream in alignment with the pattern of sequential bit values in the first SDR data stream.
摘要:
Methods and apparatus are provided for a system for aligning data. The apparatus comprises a data processing component adapted to produce a plurality of processed data streams delayed by a successively increasing number of clock cycles, a plurality of sequence detection components coupled to the data processing component, each of the plurality of sequence detection components adapted to inspect its input data stream for a predetermined sequence of bits, and a data selecting component adapted to receive the plurality of processed data streams, to select one of the plurality of processed data streams in response to receiving an indicator from a corresponding sequence detection component.