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Browse Prior Art Database

METHOD TO PREVENT INTERRUPTS WITH UNKNOWN SOURCE

IP.com Disclosure Number: IPCOM000009921D
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2002-Sep-27
Document File: 2 page(s) / 87K

Publishing Venue

Motorola

Related People

Authors:
Russell L. Oertel

Abstract

The HCll and HCl2 families of microcontrollers have historically allowed customers great flexibility in the handling of interrupts. For instance, an interrupt that is asserted will cause an interrupt request to be sent to the CPU, but the vector address is not calculated immediately; instead, the vector address is calculated only after the CPU requests one, thus allowing time for a higher-priority interrupt to arrive and be serviced first.