General I/O port interrupt mechanism

Details General I/O port interrupt mechanism General I/O port interrupt mechanism

1992-07-21

1995-09-05

Harvey, Jack B.

Boots, shoes, and leggings

364941, 3649417, 3649418, 364DIG2, 395735, G06F 946

Patent

active

054487439

ABSTRACT:
An I/O port interrupt mechanism includes a source register connected to the port for reporting sources of interrupts arising within the port, an interrupt mask register connected to the source register and operable to configure the I/O port for generation of interrupts, and an interrupt controller connected to the output of the source register and operable to hold off interrupts arising within the I/O port.

REFERENCES:
patent: 3825902 (1974-07-01), Brown et al.
patent: 4159516 (1979-06-01), Henrion et al.
patent: 4631670 (1986-12-01), Bradley et al.
patent: 4779195 (1988-10-01), James
patent: 4998197 (1991-03-01), Kurakazu et al.
patent: 5142625 (1992-08-01), Nakai

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