GENERAL DESCRIPTION
The ADSP-21371/ADSP-21375 SHARC® processors are members of the SIMD SHARC family of DSPs that feature Analog Devices’ Super Harvard Architecture. The processors are 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 processors are 32-bit/40-bit floating-point processors optimized for high performance automotive audio applications with their large on-chip SRAM and mask-programmable ROM, multiple internal buses to eliminate I/O bottlenecks, and an innovative digital applications interface (DAI).

SUMMARY
   High performance 32-bit/40-bit floating point processor
      optimized for high performance audio processing
   Single-instruction, multiple-data (SIMD) computational
      architecture
   On-chip memory, ADSP-21371—1M bits of on-chip SRAM
      and 4M bits of on-chip mask-programmable ROM
   On-chip memory, ADSP-21375—0.5M bits of on-chip
      SRAM and 2M bits of on-chip mask-programmable ROM
   Code compatible with all other members of the SHARC family
   The ADSP-21371/ADSP-21375 processors are available with a
      200/266 MHz core instruction rate with unique
      audiocentric peripherals such as the digital applications interface,
      S/PDIF transceiver, serial ports, precision clock generators,
      and more. For complete ordering information, see
      Ordering Guide on Page 52.

DEDICATED AUDIO COMPONENTS
   ADSP-21371—S/PDIF-compatible digital audio
      receiver/transmitter
   ADSP-21371—8 dual data line serial ports that operate at up
      to 50 Mbps on each data line — each has a clock, frame
      sync, and two data lines that can be configured as either a
      receiver or transmitter pair
   16 PWM outputs configured as four groups of four outputs
   ROM-based security features include
      JTAG access to memory permitted with a 64-bit key
      Protected memory regions that can be assigned to limit
         access under program control to sensitive code
   PLL has a wide variety of software and hardware
      multiplier/divider ratios
   Available in a 208-lead LQFP_EP package