One chip integrated circuit for electronic apparatus with means for generating sound messages

Claim 1

An electronic apparatus for performing a primary function and a synthesized sound generating function, said apparatus comprising: a single chip integrated circuit including; input control means for controlling input data developed externally of said single chip integrated circuit; calculation control means, operatively connected to said input control means, for handling said input data and for performing said primary function and said synthesized sound generation function; a single read only memory storing and providing to said calculation control means a primary control program for controlling said primary function, a synthesis control program for controlling said synthesized sound generating function and sound data used by said calculation control means to synthesize desired sounds; random access memory means for storing and providing to said calculation control means data used by said calculation control means in performing said primary function and said synthesized sound generation function; and main program counter means, responsive to control by said calculation control means, for addressing locations in said read only memory containing said primary control program and synthesis control program to provide said programs to said calculation control means; and data counter means, responsive to control by said calculation control means, for addressing locations in said read only memory containing said sound data to provide said sound data to said calculation control means.