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:
Oct. 20, 2009
Filed:
Nov. 16, 2007
David Anthony New, Cambridge, GB;
Gus Yeung, Austin, TX (US);
Martin Jay Kinkade, Austin, TX (US);
David John Willingham, Ilford, GB;
David Anthony New, Cambridge, GB;
Gus Yeung, Austin, TX (US);
Martin Jay Kinkade, Austin, TX (US);
David John Willingham, Ilford, GB;
ARM Limited, Cambridge, GB;
Abstract
A multiport memoryis provided with control circuitrywhich detects signal values indicative of concurrent write and read accesses via respective bit lines of a plurality of data access ports to a common row of bit cells. When such signals are detected, an override signal is generated and supplied to override circuitry. The override circuitry is responsive to the override signal to drive one or more bit values being written to respective bit cells via their associated bit lines onto associated bit lines of other of a plurality of data access supports that are concurrently enabled for access to their bit cells. Thus, write data is also written onto the bit lines associated with a port performing a concurrent read operation.