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:
Jan. 05, 2016
Filed:
Dec. 21, 2012
Apple Inc., Cupertino, CA (US);
Deniz Balkan, Santa Clara, CA (US);
Gurjeet S. Saund, Saratoga, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Systems and methods for maintaining an order of read and write transactions for each source through a bridge in a bus fabric. The bridge provides a connection from a first bus to a second bus within the bus fabric. The first bus has a single path for read and write transactions and the second bus has separate paths for read and write transactions. The bridge maintains a pair of counters for each source in a SoC to track the numbers of outstanding read and write transactions. The bridge prevents a read transaction from being forwarded to the second bus if the corresponding write counter is non-zero, and the bridge prevents a write transaction from being forwarded to the second bus if the corresponding read counter is non-zero.