Multiple port service expansion adapter for a communications con

Details Multiple port service expansion adapter for a communications con Multiple port service expansion adapter for a communications con

1985-06-14

1989-06-06

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 1332

Patent

active

048376779

ABSTRACT:
Bus interconnection between the system busses of a multi-port communications controller and the busses of one or more multi-port adapters is facilitated with a new architecture for providing an interconnection controller. A programmably adjustable adapter and port interface controller is combined via a scannerless communications controller with a bus interconnection control logic that handles both DMA and interrupt mode data transfers for a large number of channels. The invention provides an improved apparatus and method for transferring data to or from numerous communication channel devices within a processor based communications system in such a manner that the optimum mode of data transfer may be individually programmed for each channel as system environment conditions demand.

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