GENERAL DESCRIPTION
The ADSP-216x Family processors are single-chip microcomputers␣ optimized␣ for␣ digital␣ signal␣ processing␣ (DSP) and other high speed numeric processing applications. The ADSP-216x processors are all built upon a common core with ADSP-2100. Each processor combines the core DSP architecture—computation units, data address generators and program sequencer—with features such as␣ on-chip program ROM and data memory RAM, a programmable timer and two serial ports. The ADSP-2165/ADSP-2166 also adds program memory and power-down mode.

SUMMARY
   16-Bit Fixed-Point DSP Microprocessors with
      On-Chip Memory
   Enhanced Harvard Architecture for Three-Bus
      Performance: Instruction Bus and Dual Data Buses
   Independent Computation Units: ALU, Multiplier/
      Accumulator and Shifter
   Single-Cycle Instruction Execution and Multifunction
      Instructions
   On-Chip Program Memory ROM and Data Memory RAM
   Integrated I/O Peripherals: Serial Ports, Timer

FEATURES
   25 MIPS, 40 ns Maximum Instruction Rate (5 V)
   Separate On-Chip Buses for Program and Data Memory
   Program Memory Stores Both Instructions and Data
      (Three-Bus Performance)
   Dual Data Address Generators with Modulo and
      Bit-Reverse Addressing
   Efficient Program Sequencing with Zero-Overhead
      Looping: Single-Cycle Loop Setup
   Double-Buffered Serial Ports with Companding Hardware,
      Automatic Data Buffering and Multichannel Operation
   Three Edge- or Level-Sensitive Interrupts
   Low Power IDLE Instruction
   PLCC and MQFP Packages