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Apparatus and method for controlling transfer of data between and processing of data by interconnected data processing elements

  • US 6,141,691 A
  • Filed: 04/03/1998
  • Issued: 10/31/2000
  • Est. Priority Date: 04/03/1998
  • Status: Expired due to Term
First Claim
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1. An output interface for a sender of data, comprising:

  • an output for providing a datum and a boundary signal indicating whether the datum defines a boundary of a sample of the data, a valid data signal associated and synchronous with a datum and indicating whether the associated datum is valid, and a reference clock signal and wherein the data is output by the output interface at a rate defined by the reference clock signal;

    an input for providing a request signal from a receiver and asynchronous with the reference clock signal indicating a request for transfer of data from the sender; and

    a controller that, after receipt of the request signal, directs data to the output and that asserts the valid data signal in association with the datum.

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