Electrical computers and digital data processing systems: input/ – Interrupt processing – Multimode interrupt processing
Patent
1994-05-19
2000-11-07
Sheikh, Ayaz R.
Electrical computers and digital data processing systems: input/
Interrupt processing
Multimode interrupt processing
710260, G06F 946
Patent
active
061450472
ABSTRACT:
Level trigger mode interrupts are converted to edge trigger mode interrupts in a computer system. A circuit detects the occurrence of a level trigger mode interrupt request, and asserts an edge trigger mode interrupt request output. The edge trigger mode interrupt request remains asserted until an End of Interrupt input is asserted, indicating that the CPU has completed servicing the prior interrupt. The edge trigger mode interrupt request is then deasserted.
REFERENCES:
patent: 4890219 (1989-12-01), Heath et al.
patent: 5101497 (1992-03-01), Culley et al.
patent: 5261107 (1993-11-01), Klim et al.
patent: 5313640 (1994-05-01), Beardsley et al.
patent: 5410708 (1995-04-01), Miyamori
Garinger Ned D.
Yu Tein-Yow
Sheikh Ayaz R.
VLSI Technology Inc.
Wiley David A.
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