Method for bus access for data transmission through a...

Details Method for bus access for data transmission through a... Method for bus access for data transmission through a...

H - Electricity

04

J

363/17

H04J 3/06 (2006.01) G06F 13/374 (2006.01) G06F 15/16 (2006.01)

Patent

CA 1269771

ABSTRACT OF THE DISCLOSURE A method for accessing a multiprocessor data bus between integrated function blocks for bidirectional data exchange, which is operated in time-multiplex by means of a pulse frame synchronizing signal, which includes fixedly position- ed within the pulse frame a first timing channel carrying bus access control information and a second timing channel carrying data and address information, which comprises: checking, by the function block seeking to access to the bus, the bus for presence of control information in the first timing channel; checking next, in case the bus has no control information in the first timing channel, the function block for presence of a first priority condition; placing next, on the bus by the function block seeking access, control information specific to that function block; checking that the specific control information is accepted by the bus; and transmitting, via the second timing channel the data with address information.

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