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:
Dec. 06, 2005
Filed:
Jul. 11, 2002
Bernard Charles Drerup, Austin, TX (US);
Jaya Prakash Subramaniam Ganasan, Youngsville, NC (US);
Richard Gerard Hofmann, Apex, NC (US);
Richard Nicholas Iachetta, Jr., Pflugerville, TX (US);
Barry Joe Wolford, Austin, TX (US);
Bernard Charles Drerup, Austin, TX (US);
Jaya Prakash Subramaniam Ganasan, Youngsville, NC (US);
Richard Gerard Hofmann, Apex, NC (US);
Richard Nicholas Iachetta, Jr., Pflugerville, TX (US);
Barry Joe Wolford, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An electronic system is disclosed, including multiple initiators and one or more targets coupled to a bus, and a request mask control unit (RMCU). The initiators are configured to initiate requests (e.g., read requests and write requests) via the bus, and the targets are configured to receive requests from the initiators via the bus. The targets are also configured to produce multiple MaskEnable signals, wherein each of the MaskEnable signals is generated following an initial request received via the bus, and dependent on a corresponding 'masking situation' within the target. The RMCU receives the MaskEnable signals and produces multiple RequestMask signals dependent upon the MaskEnable signals. One or more of the initiators are permitted to repeat requests via the bus dependent upon one or more of the RequestMask signals. This mechanism provides additional bus bandwidth for carrying out successful data transfers.