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Data interface

  • US 5,802,351 A
  • Filed: 02/05/1996
  • Issued: 09/01/1998
  • Est. Priority Date: 02/14/1995
  • Status: Expired due to Term
First Claim
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1. A data buffer positionable between a first processing means and a second processing means, comprising:

  • storage means arranged to buffer data signals generated by each of said processing means for reception by the other of said processing means, andprogrammable storage allocation means arranged to adjust an amount of storage provided by said storage means for buffering data signals generated by each of said processing means;

    wherein said programmable storage allocation means is comprised of address generating means for generating addressing signals for the writing of data to said storage means or the reading of data from said storage means; and

    wherein said address signal generating means is arranged to generate addressing signals initiated from a predetermined value, said address signal generating means further including decoding means for selectively applying an offset to said addressing signals, depending upon whether a writing operation or a reading operation is being performed.

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