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:
May. 06, 2003
Filed:
Feb. 18, 2000
Richard Carlson, Ft Collins, CO (US);
Hewlett Packard Development Company, L.P., Houston, TX (US);
Abstract
A common hardware page walker includes an arbitration logic block that controls data bus access between the arbitration logic block and multiple translation lookaside buffers (TLBs), such as an instruction TLB and a data TLB. The arbitration logic block simplifies the complexity within the hardware page walker and makes multiple-state data transfer possible. Each unit (i.e., the hardware page walker and a data TLB and an instruction TLB) has a unidirectional bus that it always drives, and the arbitration logic block informs the hardware page walker which of the busses is active during any given cycle. Thus, the hardware page walker can receive only one command per cycle, and needs no extra logic to handle multiple bus access requests.