Interrupt vector method and apparatus

Details Interrupt vector method and apparatus Interrupt vector method and apparatus

1993-08-02

1995-12-05

Harrell, Robert B.

Boots, shoes, and leggings

364DIG1, 364DIG2, 364230, 3642302, 3642632, 364941, G06F 946

Patent

active

054737630

ABSTRACT:
An interrupt vector approach for a processor system loads an interrupt vector directly into an address register to minimize overhead of processing interrupts. A plurality of interrupt triggers correspond to a plurality of interrupt vector registers, each containing a programmable interrupt vector. Upon activation of one of the interrupt triggers, the contents of the corresponding interrupt vector is loaded into a slot memory address counter. The address counter addresses a sequencer slot memory which contains the starting addresses of sequences of instructions stored in an instruction memory. An instruction address counter receives addresses from the sequencer slot memory and provides addresses to the instruction memory. Upon activation of said one of the interrupt triggers, execution of one of the sequences beginning at the address contained in the interrupt register corresponding to the active interrupt trigger is begun, and addresses of the sequences in sequencer slot memory are sequentially loaded into the instruction address counter until a stop bit is indicated in a word in the sequencer slot memory.

REFERENCES:
patent: 4748671 (1988-05-01), Drewlo
patent: 4761762 (1988-08-01), Holmes
patent: 4875161 (1989-10-01), Lahti
patent: 4953072 (1990-08-01), Williams
patent: 4984151 (1991-01-01), Dujari
patent: 5027290 (1991-06-01), Kirk et al.
patent: 5038282 (1991-08-01), Gilbert et al.
patent: 5067071 (1991-11-01), Schanin et al.
patent: 5109513 (1992-04-01), Otsuka
patent: 5121498 (1992-06-01), Gilbert et al.
patent: 5146597 (1992-09-01), Williams
patent: 5274795 (1993-12-01), Vachon
patent: 5283904 (1994-02-01), Carson et al.

Affiliated with

Also associated with

Rating

Interrupt vector method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interrupt vector method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interrupt vector method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1381146