DATA PROCESSING SYSTEM AND DATA PROCESSOR

摘要

An interface means (119) for enabling connection with the other data processor (100) is provided in one data processor (101), and a function of enabling connection with the other data processor as a bus master is provided in an internal bus (108) in one data processor to allow the other data processor to directly operate a peripheral function, memory-mapped in the internal bus, from the outside via the interface means. Consequently, a data processor can use the peripheral function of another data processor without interrupting a program being run. In fact, one data processor can share the peripheral resource of another data processor.