METHOD AND ARRANGEMENT FOR COMMUNICATING BETWEEN PROCESSORS HAVING VARIABLE PRIORTIES

摘要

The transmission lines for token and data processes are separated and the communication reservation circuit for the token process is added. The transmission right for occupying the data transmission bus is processed by the token circulating the communication reservation ring. The processor wanting the data transmission reserves the reservation circuit so that the token arriving at the processor is interrupted and informed to the MPU. The processor searches the address of destination processor and sends the data. After completing the data transmission, the transmission right is transfered to another processor.