Method and system of operating a codec in an operational mode

A codec for coding and decoding signals, comprising:

• a clock generator system for generating and operating a codec with a clock signal;
• a digital interface block having at least registers and a codec link interface for coupling to a codec controller wherein the clock generator system is coupled to the digital interface block;
• a digital input/output interface block for digitally interfacing with input and output devices wherein the digital input/output interface block is coupled to the digital interface block;
• an analog interface block having at least an analog-to-digital converter, an input multiplexer, an analog mixer, a digital mixer, and a digital-to-analog converter wherein the analog interface block is coupled to the digital interface block;
• and
• a sample rate conversion system coupled between the digital interface block and the analog interface block to convert between respective sample rates of the digital interface block and the analog interface block;
• and
• wherein the codec is operating in a digital centric mode by the analog mixer first mixing analog signals, if any, to produce a mixed analog signal;
• the analog-to-digital converter converting the mixed analog signal into a converted digital signal;
• the digital mixer mixing the converted digital signal with digital signals that are otherwise generally unavailable as analog signals to the codec to produce a mixed digital signal;
• and the digital-to-analog converter of the codec converting the mixed digital signal into a mixed analog signal.

An audio system, comprising:

• an audio codec that includes:
• a clock generator system for generating and operating a codec with a clock signal;
• a digital interface block having at least registers and a codec link interface for coupling to a codec controller wherein the clock generator system is coupled to the digital interface block;
• a digital input/output interface block for digitally interfacing with input and output devices wherein the digital input/output interface block is coupled to the digital interface block;
• an analog interface block having at least an analog-to-digital converter, an input multiplexer, an analog mixer, a digital mixer, and a digital-to-analog converter wherein the analog interface block is coupled to the digital interface block;
• and
• a sample rate conversion system coupled between the digital interface block and the analog interface block to convert between respective sample rates of the digital interface block and the analog interface block;
• and
• an audio codec link coupled to the audio codec;
• an audio codec controller coupled to the audio codec link wherein the audio codec controller controls operation of the audio codec;
• a system bus coupled to the audio codec controller and
• a central processing unit and bus sources coupled to the system bus;
• wherein the audio codec is operating in a digital centric mode by the analog mixer first mixing analog signals, if any, to produce a mixed analog signal;
• the analog-to-digital converter converting the mixed analog signal into a converted digital signal;
• the digital mixer mixing the converted digital signal with digital signals that are otherwise generally unavailable as analog signals to the audio codec to produce a mixed digital signal;
• and the digital-to-analog converter of the audio codec converting the mixed digital signal into a mixed analog signal.