Data transfer system capable of transferring data at high transfer speed
AssigneeRenesas Technology Corp.
InventorTsukasa Ooishi
Life of this patent
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Abstract
A first feature of a data processing system is in that, in a data transfer path including a plurality of signal lines used for data transfer, a phase control is performed independently for each of the signal lines. A second feature is in that data is selectively transferred from a coupling exchange to a signal processor or a signal memory. A third feature is in that the signal processor, the signal memory and the coupling exchange are coupled to each other. By the features, the phase margin in the transfer data and clocks is widened and high speed transfer can be realized. Since data can be directly written in the signal memory, the signal processor can be efficiently used. Further, efficiency in processing and transfer of signals is improved.
Claims7
A data transfer system comprising:
- a coupling exchange for transmitting/receiving signals to/from an external device;
- a signal processor connected to said coupling exchange;
- a signal memory connected to both said signal processor and said coupling exchange, for storing a signal used by said signal processor;
- and
- a first transmission line including a plurality of signal lines connecting said coupling exchange and said signal memory, wherein
- said signal memory includes a receiver for adjusting a reception phase of a transmission signal transmitted from said coupling exchange with respect to each of said plurality of signal lines.
Dependencies are inferred from the claim text.