GENERAL DESCRIPTION
The ADSP-2186L is a single-chip microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications.
   
FEATURES
    Performance
    25 ns Instruction Cycle Time 40 MIPS Sustained
        Performance
    Single-Cycle Instruction Execution
    Single-Cycle Context Switch
    3-Bus Architecture Allows Dual Operand Fetches in
        Every Instruction Cycle
    Multifunction Instructions
    Power-Down Mode Featuring Low CMOS Standby
        Power Dissipation with 400 Cycle Recovery from
        Power-Down Condition
    Low Power Dissipation in Idle Mode
   
Integration
    ADSP-2100 Family Code Compatible, with Instruction
        Set Extensions
    40K Bytes of On-Chip RAM, Configured as
        8K Words On-Chip Program Memory RAM and
        8K Words On-Chip Data Memory RAM
    Dual Purpose Program Memory for Both Instruction
        and Data Storage
    Independent ALU, Multiplier/Accumulator and Barrel
        Shifter Computational Units
    Two Independent Data Address Generators
    Powerful Program Sequencer Provides
        Zero Overhead Looping Conditional Instruction
        Execution
    Programmable 16-Bit Interval Timer with Prescaler
    100-Lead LQFP and 144-Ball Mini-BGA
   
System Interface
    16-Bit Internal DMA Port for High Speed Access to
        On-Chip Memory (Mode Selectable)
    4 MByte Byte Memory Interface for Storage of Data
        Tables and Program Overlays
    8-Bit DMA to Byte Memory for Transparent Program
        and Data Memory Transfers (Mode Selectable)
    I/O Memory Interface with 2048 Locations Supports
        Parallel Peripherals (Mode Selectable)
    Programmable Memory Strobe and Separate I/O Memory
        Space Permits “Glueless” System Design
        (Mode Selectable)
    Programmable Wait State Generation
    Two Double-Buffered Serial Ports with Companding
        Hardware and Automatic Data Buffering
    Automatic Booting of On-Chip Program Memory from
        Byte-Wide External Memory, e.g., EPROM, or
        Through Internal DMA Port
    Six External Interrupts