ADSP-21375

The ADSP-21375 SHARC processor is a members of the SIMD SHARC family of DSPs that feature Analog Devices' Super Harvard Architecture. The ADSP-21375 is source code compatible with the ADSP-2126x, ADSP-2136x, and ADSP-2116x DSPs as well as with first generation ADSP-2106x SHARC processors in SISD (single-instruction, single-data) mode. The ADSP-21375 is a 32-bit/40-bit floating point processors optimized for high performance automotive audio applications with its large onchip SRAM and mask-programmable ROM, multiple internal buses to eliminate I/O bottlenecks, and an innovative digital applications interface (DAI).

As shown in the functional block diagram on Page 1, the ADSP-21375 uses two computational units to deliver a significant performance increase over the previous SHARC processors on a range of DSP algorithms. Fabricated in a state-of-the-art, high speed, CMOS process, the ADSP-21375 processor achieves an instruction cycle time of 3.75 ns at 266 MHz. With its SIMD computational hardware, the ADSP-21375 can perform 1.596 GFLOPS running at 266 MHz.

Table 1 shows performance benchmarks for the ADSP-21375.