A DSP-based, multi-bus, multiplexing communications adapter

A pair of communications adapters each include a number of digital signal processors (12) and network interface circuits (24) for the attachment of a multi-channel telephone line. A bus connecting the communications adapters can carry data between a network line attached to one of the adapters and t...

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Hauptverfasser: TURBEVILLE, GARY L, ANDREWS, LAWRENCE P, ENG, ROBERT CHIH-TSIN, SINIBALDI, JOHN CLAUDE, WILLIAMS, KEVIN BRADLEY, BECKMAN, RICHARD CLYDE, LINGER, JUDITH MARIE, PETTY, JOSEPH C., JR
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A pair of communications adapters each include a number of digital signal processors (12) and network interface circuits (24) for the attachment of a multi-channel telephone line. A bus connecting the communications adapters can carry data between a network line attached to one of the adapters and the digital signal processors of the other adapter. The digital signal processors on each card are connected to a host, or controller, processor (2). Each digital signal processor interrupts its host processor by transmitting an interrupt control block as data to a data memory of the host processor, and by subsequently sending an interrupt causing the host processor to examine the data memory. Preferably, the interrupt control block includes data representing a number of requested interrupts.