The ARM AudioDE™ audio and speech processor is a class-leading solution for designers of portable digital audio and voice products. AudioDE, derived from ARM's OptimoDE™ technology, is configured to meet the challenges of high performance and low cost while delivering exceptionally low power consumption.
The AudioDE audio processor strikes a perfect balance between computational resources, register files, memory bandwidth and address generation capabilities. This property together with its multiple instruction set Variable Length - Long Instruction Word (VL-LIW) controller enables the development of very fast, extremely parallel, algorithms - thereby minimising the MHz requirements.
The AudioDE audio processor has two modes, 24-bit for digital audio processing and 16-bit for speech processing. The processor features a dual Harvard architecture, with a single Arithmetic Logic Unit (ALU) and a single Multiplier and Accumulator unit (MAC) with double precision accumulation. These units operate in parallel with the two data-memory ports and accompanying address generators. Efficient single-cycle memory access is supported for all addressing modes, like bit-reverse and modulo addressing.