DATA PROCESS DEVICE, DATA PROCESS SYSTEM, METHOD OF CONNECTING COPROCESSOR, AND COPROCESSOR INTERFACE METHOD

摘要

A data processing unit, a data processing system, a co-processor connecting method, and a co-processor interfacing method are provided to improve the process speed and supporting a connection of multiple co-processor using small number of signal lines. A main processor(411) transmits a first coprocessor interface signal combination, transmits a coprocessor command by receiving a second coprocessor interface signal, and continues the pipeline without waiting the result of coprocessor command. A plurality of coprocessors(412,413) are operated by the coprocessor command. A data processing unit includes a coprocessor bus(420) connecting main processors, and coprocessors for inputting the first coprocessor interface signal group, or the second coprocessor interface signal group to each coprocessors through the same signal line by the interface signals.