Interrupt controlling circuit

Details Interrupt controlling circuit Interrupt controlling circuit

2007-12-11

2007-12-11

Myers, Paul R. (Department: 2111)

Electrical computers and digital data processing systems: input/

Access arbitrating

Hierarchical or multilevel arbitrating

C710S262000

Reexamination Certificate

active

11087660

ABSTRACT:
Interrupt controlling circuit by which only a desired one(s) of plural interrupts may readily be masked. An interrupt factor controlling module105is provided for each interrupt. An interrupt group setting register154holds a group number of an interrupt signal INT entered to the interrupt factor controlling module105. An interrupt group mask register103holds, for each group, information as to whether or not an interrupt belonging to a group in question is to be masked. In case an interrupt has occurred and the group of the group number of the interrupt, as held by the interrupt group setting register154, is specified by the interrupt group mask register103as being to be masked, the interrupt mask circuit152masks the interrupt.

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