The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2000
Filed:
Oct. 30, 1997
John F Chappel, Mississauga, CA;
Michael J Tresidder, Scarborough, CA;
LSI Logic Corporation, Milpitas, CA (US);
Abstract
A data transfer device for transferring packets of data across an asynchronous boundary separating a first time domain from a second time domain, and, a method for transferring the packets of data is disclosed. The device comprises a plurality of transmitter/receiver combinations, which form a plurality of channels across the asynchronous boundary, such that multiple packets of data can be transferred across the asynchronous boundary at any one time. The device comprises ordering units which preserve the order of the packets of data as they are transferred across the asynchronous boundary. The ordering units perform this function by transmitting the packets of data through transmitters in a predetermined transmitter sequence and receiving the packets of data on the receivers in a predetermined receiver sequence which corresponds to the predetermined transmitter sequence. In this way, the predetermined order of the packets of data being transferred across the asynchronous boundary is preserved. In one embodiment, the channels are single handshake channels such that one handshake signal both requests receipt of a new packet of data and acknowledges receipt of a previous packet of data from the other time domain.