Patent ID: 6078962
Filing Date: 2000-06-20
Classification: G06F

Abstract:
A bi-directional data transfer device for transferring packets of data across an asynchronous boundary separating a first time domain from a second time domain, said device comprising:first memory means located in the first time domain for storing packets of data to be sent from the first time domain to the second time domain;first control means located in the first time domain for sending a first control signal indicative of a request that the second time domain receive one packet of data stored in the first memory means;second memory means located in the second time domain for storing packets of data to be sent from the second time domain to the first time domain;second control means located in the second time domain for sending a second control signal indicative of a request that the first time domain receive one packet of data stored in the second memory means and an acknowledgment of receipt by the second time domain of an immediately previous packet of data from the first time domain; andwherein receipt of the second control signal by the first control means acknowledges receipt by the second time domain of the immediately previous packet of data from the first time domain.