Multiprocessor interface adaptor with broadcast function

摘要

An telephone media processing server is described having clock pulse steering circuit for steering clock pulses to a plurality of digital processors under control of a main processor. Other signals, such as a frame clock, for generating frame pulses, address and data lines are distributed using single conductors connected to output pins of a control processor. Typically, more than eight signal processors partitioned in a plurality of groups are interfaced to a single main processor. Each group of signal processors has a clock input controlled by the clock steering circuit. A main processor has a data port pin, an address port pin, and a switching command output connected to the clock pulse steering means for steering clock pulses to each group of processors. The signal processors set the data pin and address pin to a high impedance when the clock input is inactive. An example using the TMS320C5x processor is detailed.