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:
Aug. 24, 1993
Filed:
Dec. 30, 1991
Martin Sodos, San Jose, CA (US);
Sun Microsystems, Inc., Mountain View, CA (US);
Abstract
A method and apparatus for arbitrating among multiple requested data transfers based on the availability of transfer resources. A request for the control of a resource is transmitted to an arbiter with information regarding the size of data transfer, internal buses and external buses required. The arbiter compares the information with the space remaining in the buffer, internal bus availability and external bus availability. If all the resources are available to complete the request, then the request is granted arbitration and the requested transfer is started. If any of the resources is not available, the arbiter takes the next request for evaluation. A mechanism is also provided for each request to require the arbiter to wait until all the resources are available to prevent the arbiter from taking on the next request.