G - Physics – 06 – F
Patent
G - Physics
06
F
354/234, 354/230
G06F 9/46 (2006.01) G06F 13/12 (2006.01) G06F 13/26 (2006.01)
Patent
CA 1203919
ABSTRACT OF THE DISCLOSURE Interface of the parallel type controlling data transfer between an asynchronous bus, to which a control processor is connected, and a synchronous bus connected to a plurality of terminals each sending its own synchronism signal on the synchronous bus. The control is effected by causing in a time equal to the shortest period of the synchronism signals at least one transfer from or towards each terminal and possibly a transfer from or towards the control processor. The interface assigns a priority to the transfers from or towards the terminals with respect to the transfers from or towards the control processor, and interrupts these latter transfers at the end of the instruc- tion in progress if it receives a pulse of one of the synchronism signals to start a transfer towards the corresponding terminal. In addition, the interface controls the tranfers relevant to the terminals in time sequence with a fixed priority.
446872
Appiano Silvano
Destefanis Paolo
Poggio Cesare
Ridout & Maybee Llp
Telecom Italia Lab Spa
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