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Apparatus and method for providing a generic interface between a host system and an asynchronous transfer mode core functional block

  • US 5,745,684 A
  • Filed: 11/06/1995
  • Issued: 04/28/1998
  • Est. Priority Date: 11/06/1995
  • Status: Expired due to Term
First Claim
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1. A method for coordinating data transfer between a System Input/Output (IO) functional block and an Asynchronous Transfer Mode (ATM) functional block, comprising the steps of:

  • (a) providing a first signal from the ATM functional block to the System IO functional block, for requesting the reading of data from the System IO functional block to the ATM functional block;

    (b) providing locational information related to the data to be transferred, from the ATM functional block to the System IO functional block; and

    (c) providing a second signal from the System IO functional block to the ATM functional block, for acknowledging the request for reading of data, step (b) being independent from step (c),wherein the System IO functional block is synchronous to a first clock, the ATM functional block is synchronous to a second clock which has a clock rate that is different from the clock rate of the first clock and wherein the first and second signals are synchronous to the second clock.

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