Patent ID: 6175880
Filing Date: 2001-01-16
Classification: G06F,Y02D

Abstract:
A computer system, comprisinga system bus, a processor coupled to said system bus, a system memory coupled to said system bus, and an audio-output device coupled to said system bus, said audio-output device comprisinga bus-interface element having means for coupling to said system bus, means for receiving a plurality of commands issued by said processor, and means for transmitting data to said processor;a digital signal processor coupled to said bus-interface element, said digital signal processor having means for interpreting and executing instructions, means for receiving from said bus-interface element a signal indicative of receipt of at least one of said plurality of commands, and means for sending to said bus-interface element a signal indicative of completion of said at least one command;a local memory coupled to said bus-interface element and to said digital signal processor, said local memory having a communication area;said bus-interface element having means for writing to said communication area upon receipt of a first subset of said plurality of commands, and means for reading from said communication area upon receipt of a second subset of said plurality of commands; andsaid digital signal processor having means for reading from and writing to said communication area in response to said at least one command.