ADSP-21261 is a 150MHz SIMD on-chip dual-ported SRAM SHARC processor for use in cost sensitive and signal processing applications. The ADSP-21261 is based on the SHARC (SIMD) core that supports execution of 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats. With its core running at 150MHz (6.67 ns instruction cycle time), the ADSP-21261 is capable of executing complex Fast Fourier Transform (FFT) operations-1024-point complex FFT in 61us. The processor’s single-instruction, multiple data (SIMD) mode effectively doubles the processor performance. The ADSP-21261 offers a high level of integration, including 1Mbit of on-chip dual-ported SRAM and 3Mbits of mask programmable ROM memory.
- 150MHz (6.67 ns) SIMD SHARC core, capable of 900MFLOPS peak performance
- Code compatible with all SHARC processors
- Supports IEEE-compatible 32-bit floating-point, 40-bit floating-point and 32-bit fixed-point data types
- 1Mbit on-chip dual-ported SRAM; 3Mbits mask-programmable ROM
- 4 independent serial ports - supports: standard DSP serial mode, I2S mode, left justified sample pair mode and TDM mode
- 18 zero-overhead DMA channels
- SPI compatible interface and a 16-bit parallel port
- Digital audio interface (DAI)
- Software configurable PLL providing many multiplier ratios
- Four timers: 1 core and 3 general purpose timers
- 136-ball BGA (12mm x 12mm) and 144-lead LQFP (20mm x 20mm) packages available in commercial and industrial temp ranges
