GENERAL DESCRIPTION
The ADSP-2100 Family processors are single-chip microcomputers optimized for digital signal processing (DSP) and other high speed numeric processing applications. The ADSP-21xx processors are all built upon a common core. Each processor combines the core DSP architecture—computation units, data address generators, and program sequencer—with differentiating features such as on-chip program and data memory RAM, a programmable timer, one or two serial ports, and, on the ADSP-2111, a host interface port.

SUMMARY
   16-Bit Fixed-Point DSP Microprocessors with
      On-Chip Memory
   Enhanced Harvard Architecture for Three-Bus
      Performance: Instruction Bus & Dual Data Buses
   Independent Computation Units: ALU, Multiplier/
      Accumulator, and Shifter
   Single-Cycle Instruction Execution & Multifunction
      Instructions
   On-Chip Program Memory RAM or ROM
      & Data Memory RAM
   Integrated I/O Peripherals: Serial Ports, Timer,
      Host Interface Port (ADSP-2111 Only)

FEATURES
   25 MIPS, 40 ns Maximum Instruction Rate
   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
   Automatic Booting of On-Chip Program Memory from
      Byte-Wide External Memory (e.g., EPROM )
   Double-Buffered Serial Ports with Companding Hardware,
      Automatic Data Buffering, and Multichannel Operation
   ADSP-2111 Host Interface Port Provides Easy Interface
      to 68000, 80C51, ADSP-21xx, Etc.
   Automatic Booting of ADSP-2111 Program Memory
      Through Host Interface Port
   Three Edge- or Level-Sensitive Interrupts
   Low Power IDLE Instruction
   PGA, PLCC, PQFP, and TQFP Packages
   MIL-STD-883B Versions Available
   ADSP-2101, ADSP-2105, and ADSP-2115 are obsolete