Input/output interface logic for concurrent operations

Details Input/output interface logic for concurrent operations Input/output interface logic for concurrent operations

1976-04-30

1977-07-26

Chapnick, Melvin B.

Boots, shoes, and leggings

G06F 304, G06F 1300

Patent

active

040386422

ABSTRACT:
The interface between I/O control logic, or channel, and peripheral devices permits simultaneous transfer of command, device address, and data, and includes logic in a peripheral device control unit for dynamic change of the attached peripheral device interrupt priority level while the device may be executing a prior command. The I/O control logic includes means for initiating serial poll signalling while other transfers are taking place on the interface.

REFERENCES:
patent: 3815099 (1974-06-01), Cohen et al.

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