Abstract
A single chip high-performance digital signal processor (HSP) has been developed for speech, telecommunication, and other applications. The HSP uses 3 μm CMOS technology and its architecture features floating point arithmetic and pipeline structure. By adoption of floating point arithmetic, data covering a wide dynamic range (up to 32 bits) can be manipulated. The input clock frequency is 16 MHz, and the instruction cycle time is 250 ns. Efficient signal processing instructions and a large internal memory (program ROM: 512 words; data RAM: 200 words; data ROM: 128 words) make it possible to construct a compact speech analysis circuit by the LPC (PARCOR) method with two HSP's. This paper describes HSP architecture, LSI design, and a speech analysis application.
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