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:
Mar. 22, 2011
Filed:
Sep. 25, 2008
Tse-hong Wu, Hsinchu, TW;
Liang-yun Wang, Taipei, TW;
Tse-Hong Wu, Hsinchu, TW;
Liang-Yun Wang, Taipei, TW;
Mediatek Inc., Hsin-Chu, TW;
Abstract
An embedded system and an interruption handling method are provided. A plurality of interruption requests are received, and corresponding service routines are triggered with priority control. In the embedded system, a memory device comprises a plurality of service routines stored at different entry addresses, each related to an interruption request. A processor receives an enable signal to initialize one of the service routines through a branch instruction. A control unit buffers the interruption requests to schedule executions of corresponding service routines. When a specific service routine is to be executed, the control unit provides the branch instruction pointing to entry address of the specific service routine and asserts the enable signal to the processor, such that the processor executes the branch instruction to initialize the specific service routine.