FUNCTION EXTENSION SYSTEM OF DSP MOUNTED DEVICE

摘要

PROBLEM TO BE SOLVED: To provide data on a filter coefficient, etc., for a plurality of DSPs(digital signal processor) by distributing the contents of a ROM to the DSPs. ;SOLUTION: This system is equipped with the DSPs 10 and the ROM 20 which stores the filter coefficient, initial conditions, branch conditions, etc. Further, the DSPs 10 and ROM 20 are connected by a bus 21. This bus 21 includes an address bus and a data bus. Consequently, the data on the filter coefficient, etc., can be distributed to the respective DSPs 10 in common and the data on the filter coefficient, etc., can be provided for the DSPs 10. In this case, the filter characteristics of the DSPs 10 can be changed only by the replacement of the one ROM. Consequently, the function extension system of the DSP mounted device is obtained which can provide the data on the filter coefficient, etc., for the DSPs 10.;COPYRIGHT: (C)1997,JPO