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:
Jul. 13, 2004
Filed:
Feb. 17, 2000
Christopher Mark Songer, Mountain View, CA (US);
Pavlos Konas, Mountain View, CA (US);
Marc E. Gauthier, Sunnyvale, CA (US);
Kevin C. Chea, San Francisco, CA (US);
Tensilica, Inc., Santa Clara, CA (US);
Abstract
A hardware abstraction layer operates as a system architectural layer between a real-time operating system and an underlying configurable processor. The hardware abstraction layer provides an abstraction of processor-specific functionality to the operating system. In particular, it abstracts configurable processor features visible to the operating system to provide a uniform, standardized interface between the operating system and the configurable processor on which it runs. Thus, an operating system running on top of the hardware abstraction layer will work on all configurations of the processor which differ from one another only in the configuration parameters covered by the hardware abstraction layer. The hardware abstraction layer may be generated using the same information that is used to describe the features being configured in the configurable processor. Automatic generation of the HAL greatly eases use of the HAL and the configurable processor, since the user is not required to manually write the HAL or adapt an existing one based on the processor configuration parameters.