Sharc Processor - Analog Devices

The ADSP-21262 SHARC DSP is a member of the SIMD SHARC family of DSPs featuring Analog Devices Super Har- vard Architecture. The ADSP-21262 is source code compatible with the ADSP-21160 and ADSP-21161 DSPs as well as with first generation ADSP-2106x SHARC processors in SISD (Sin- gle-Instruction, Single-Data) mode. Like other SHARC DSPs the ADSP-21262 is a 32-bit/40-bit floating-point processor opti- mized for high precision signal processing applications with its dual-ported on-chip SRAM mask-programmable ROM, multi- ple internal buses to eliminate I/O bottlenecks, and an innovative Digital Audio Interface (DAI). As shown in the functional block diagram on Page 1, the ADSP- 21262 uses two computational units to deliver a 5 to 10 times performance increase over the ADSP-2106x on a range of DSP algorithms. Fabricated in a state-of-the-art, high speed, CMOS process, the ADSP-21262 DSP achieves an instruction cycle time of 5 ns at 200 MHz. With its SIMD computational hard- ware, the ADSP-21262 CAN perform 1200 MFLOPS running at 200 MHz. By Analog Devices, Inc.