In each processing device of a parallel processor system, a processor outputs a signal when all the transmit data are transmitted to a router. A latch receives the signal from the processor to output a signal set to HIGH. To an AND gate are inputted the signal set to HIGH outputted from the latch and...http://www.google.com.hk/patents/US5511221?utm_source=gb-gplus-share專利 US5511221 - Parallel processor system for detecting the end of data transmission
