Patent · US Active

Interrupt controller for accelerated interrupt handling in a data processing system and method thereof

US7849247B2 · kind B2 · utility

8Cited by

9References

18Claims

0Family size

Assignee

Freeescale Semiconductor, Inc. · US

Inventors

Bryan D. Marietta · Austin, US
Michael D. Snyder · Cedar Park, US
Gary L. Whisenhunt · Austin, US
Daniel L. Bouvier · Austin, US

Key dates

Filing date	Oct 14, 2008
Grant date	Dec 7, 2010
Priority date	—
Expiry date	Jan 31, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG06F13/24
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A data processing system has an interrupt controller which provides an interrupt request along with a corresponding interrupt identifier and a corresponding interrupt vector to a processor. If the processor accepts the interrupt, the processor returns the same interrupt identifier value by way of interrupt identifier, along with interrupt acknowledge, to the interrupt controller. An interrupt taken/not taken indicator may also be provided. The communications interface used to coordinate interrupt processing between the interrupt controller and the processor may be asynchronous.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.