SM320C80 Digital Signal Processors |


Digital Signal Processors

Digital Signal Processors - SM320C80


The SMJ320C80 is a single-chip, MIMD parallel processor capable of performing over two billion operations per second. It consists of a 32-bit RISC master processor with a 100-MFLOPS (million floating-point operations per second) IEEE floating-point unit, four 32-bit parallel processing digital signal processors (DSPs), a transfer controller with up to 400-MBps off-chip transfer rate, and a video controller. All the processors are coupled tightly through an on-chip crossbar that provides shared access to on-chip RAM. This performance and programmability make the ’C80 ideally suited for video, imaging, and high-speed telecommunications applications.


  • Single-Chip Parallel Multiple Instruction/Multiple Data (MIMD) Digital Signal Processor (DSP)
  • More Than Two Billion RISC-Equivalent Operations per Second
  • Master Processor (MP)
    • 32-Bit Reduced Instruction Set Computing (RISC) Processor
    • IEEE-754 Floating-Point Capability
    • 4K-Byte Instruction Cache
    • 4K-Byte Data Cache
  • Four Parallel Processors (PP)
    • 32-Bit Advanced DSPs
    • 64-Bit Opcode Provides Many Parallel Operations per Cycle
    • 2K-Byte Instruction Cache and 8K-Byte Data RAM per PP
  • Transfer Controller (TC)
    • 64-Bit Data Transfers
    • Up to 400 Megabytes per Second (MBps) Transfer Rate
    • 32-Bit Addressing
    • Direct DRAM/VRAM Interface With Dynamic Bus Sizing
    • Intelligent Queuing and Cycle Prioritization
  • Video Controller (VC)
    • Provides Video Timing and Video Random-Access Memory (VRAM) Control
    • Dual-Frame Timers for Two Simultaneous Image-Capture and/or Display Systems
  • Big- or Little-Endian Operation
  • 50K-Byte On-Chip RAM
  • 4G-Byte Address Space
  • 20-ns Cycle Time
  • 3.3-V Operation
  • IEEE Standard 1149.1 Test Access Port (JTAG)
  • Operating Temperature Range
       –55°C to 125°C - M-Temperature
       –40°C to 85°C - A-Temperature

IEEE Standard 1149.1–1990, IEEE Standard Test Access Port and Boundary-Scan Architecture

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Parametrics Compare all products in Other DSPs

Cycle time (ns)
Data/program memory space (words)
DMA (Ch)
Operating temperature range (C)
Package Group
SM320C80 SMJ320C80
20     20    
2.4G     2.4G    
1     1    
60     60    
120     120    
-55 to 125     -55 to 125    
CFP | 320
CPGA | 305    
CPGA | 305    
Military     Military