Patent · US Active

Hardware interrupt processing circuit

US8738830B2 · kind B2 · utility

0Cited by

18References

15Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Mary T. Prenn · Boise, US
Bradley R. Larson · Meridian, US

Key dates

Filing date	Mar 3, 2011
Grant date	May 27, 2014
Priority date	—
Expiry date	Jan 26, 2032

Classification

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

Abstract

A hardware interrupt processing circuit converts selected hardware interrupts to an interrupt vector having bits corresponding to the selected hardware interrupts. The hardware interrupt processing circuit includes circuit assemblies that correspond to the selected hardware interrupts. Each circuit assembly includes a detector circuit and a persistent capture circuit. The detector circuit is to output a pulse responsive to the corresponding selected hardware interrupt being asserted. The persistent capture circuit is triggered by the persistent capture circuit to output a corresponding bit of the interrupt vector until a ready signal has been asserted.

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