Interrupt expander circuit

Details Interrupt expander circuit Interrupt expander circuit

1979-12-14

1981-06-23

Thesz, Joseph M.

Boots, shoes, and leggings

G06F 946, G06F 300

Patent

active

042754585

ABSTRACT:
An interrupt expander circuit provides for greatly enlarging the capacity of vectored interrupts in a microprocessor system. This circuit provides the capability for a very large number of peripheral devices to be connected to a microprocessor centeral processing unit via an interrupt structure while maintaining the same interface requirements between the interrupting peripheral devices and the microprocessor. This circuit provides a priority interrupt structure.

REFERENCES:
patent: 3597743 (1971-08-01), Murphy
patent: 4035780 (1977-07-01), Kristick et al.
patent: 4078259 (1978-03-01), Soulsby et al.
patent: 4093998 (1978-06-01), Miller

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