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:
Feb. 04, 2003
Filed:
Oct. 01, 1999
Shigeshi Abiko, Tokyo To Kita Ku, JP;
Gilbert Laurenti, Saint Paul de Vence, FR;
Mark Buser, Pittsburgh, PA (US);
Eric Ponsot, Vence, FR;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A processor ( ) is provided that is a programmable digital signal processor (DSP) with variable instruction length, offering both high code density and easy programming. Instructions may be executed during delay slots after program branching while an execution pipeline is being restarted. Architecture and instruction set are optimized for low power consumption and high efficiency execution of DSP algorithms, such as for wireless telephones, as well as pure control tasks. A software breakpoint instruction is provided for debugging purposes. In order to correctly emulate the operation of the instruction pipeline when a software breakpoint instruction is executed during a delay slot, the width ( ) of the software breakpoint is the same as the replaced instruction. A limited number of breakpoint instruction length formats ( ) are combined with non-operational instructions (NOP, NOP ) to form a large number of combination instructions that match any instruction length format.