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An Integrated Digital Audio Signal Processor

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This paper describes a fully programmable integrated signal processor for digital audio signals (audio signal processor). The key features of the ASP chip are: 1 160 ns instruction cycle time, a 12*24 multiplier, and a wide accumulator. It also contains three separate RAMs, one for storing the program, a second for the audio data, and a third for the coefficients. The chip has several serial audio data interfaces (IIS format), a parallel data interface, and a serial control interface (IIC format). This chip contains all functions for the investigation and the realization of digital sound processing features.

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