24-bit General Embedded DSP

DSP56321
  • Not Recommended for New Designs
  • This page contains information on a product that is not recommended for new designs.

See product image

Product Details

Select a section:

Block Diagram

DSP56321 Block Diagram

Features

  • 275 MMACS (550 MMACS using the EFCOP in filtering applications) with a 275 MHz clock at 1.6 volts
  • Object code compatible with the DSP56000 core with highly parallel instruction set
  • Data arithmetic logic unit (data ALU) with fully pipelined 24 x 24-bit parallel multiplier-accumulator (MAC), 56-bit parallel barrel shifter (fast shift and normalization; bit stream generation and parsing), conditional ALU instructions and 24-bit or 16-bit arithmetic support under software control
  • Program control unit (PCU) with position-independent code (PIC) support, addressing modes optimized for DSP applications (including immediate offsets), on-chip instruction cache controller, on-chip memory-expandable hardware stack, nested hardware DO loops and fast auto-return interrupts
  • DMA with six channels supporting internal and external accesses; one-, two-, and three-dimensional transfers (including circular buffering); end-of-block- transfer interrupts; and triggering from interrupt lines and all peripherals
  • Digital phase-lock loop (DPLL) allows change of low-power divide factor (DF) without loss of lock
  • Hardware debugging support including on-chip emulation (OnCE) module, JTAG test access port (TAP)
  • Internal 24 x 24-bit filtering and echo-cancellation coprocessor
  • Runs in parallel to the DSP core
  • 192K x 24-bit on-chip RAM total
  • Program RAM, instruction cache, X data RAM and Y data RAM sizes are programmable:
    Program
    RAM Size
    Instruction
    Cache Size
    X Data
    RAM Size*
    Y Data
    RAM Size*
    32 K x 24-bit
    0
    80 K x 24-bit
    80 K x 24-bit
    31 K x 24-bit
    1024 x 24-bit
    80 K x 24-bit
    80 K x 24-bit
    40 K x 24-bit
    0
    76 K x 24-bit
    76 K x 24-bit
    39 K x 24-bit
    1024 x 24-bit
    76 K x 24-bit
    76 K x 2 4-bit
    48 K x 24-bit
    0
    72 K x 24-bit
    72 K x 24-bit
    47 K x 24-bit
    1024 x 24-bit
    72 K x 24-bit
    72 K x 24-bit
    64 K x 24-bit
    0
    64 K x 24-bit
    64 K x 24-bit
    63 K x 24-bit
    1024 x 24-bit
    64 K x 24-bit
    64 K x 24-bit
    72 K x 24-bit
    0
    60 K x 24-bit
    60 K x 24-bit
    71 K x 24-bit
    1024 x 24-bit
    60 K x 24-bit
    60 K x 24-bit
    80 K x 24-bit
    0
    56 K x 24-bit
    56 K x 24-bit
    79 K x 24-bit
    1024 x 24-bit
    56 K x 24-bit
    56 K x 24-bit
    96 K x 24-bit
    0
    48 K x 24-bit
    48 K x 24-bit
    95 K x 24-bit
    1024 x 24-bit
    48 K x 24-bit
    48 K x 24-bit
    112 K x 24-bit
    0
    40 K x 24-bit
    40 K x 24-bit
    111 K x 24-bit
    1024 x 24-bit
    40 K x 24-bit
    40 K x 24-bit
    * Includes 12 K x 24-bit shared memory (that is, memory shared by the core and the EFCOP).
  • 192 x 24-bit bootstrap ROM
  • Up to two 256K x 24-bit word memory spaces using the standard external address lines
  • Program memory expansion to one 256K x 24-bit word memory space using the standard external address lines
  • External memory expansion port
  • Chip select logic for glueless interface to SRAMs
  • 3.3-volt I/O interface enhanced 8-bit parallel host interface (HI08) supports a variety of buses (for example, ISA) and provides glueless connection to a number of industry-standard microcomputers, microprocessors and DSPs
  • Two enhanced synchronous serial interfaces (ESSI0 and ESSI1), each with one receiver and three transmitters
  • Serial communications interface (SCI) with baud-rate generator
  • Triple timer module
  • Up to 34 programmable general-purpose I/O (GPIO) signals, depending on which peripherals are enabled
  • Very low-power CMOS design
  • Wait and stop low-power standby modes
  • Fully static design specified to operate down to 0 Hz (DC)
  • Optimized power management circuitry (instruction-dependent, peripheral-dependent, and mode-dependent)

Design Resources

Documentation

Quick reference to our documentation types.

1-5 of 54 documents

Show All

Design Files

3 design files

Engineering Services

2 engineering services

To find a complete list of our partners that support this product, please see our Partner Marketplace.

Support

What do you need help with?