Product Descriptions

This device is a member of TI's C5000™ fixed-point Digital Signal Processor (DSP) product family and is designed for low active and standby power consumption.

The device is based on the TMS320C55x DSP generation CPU processor core. The C55x DSP architecture achieves high performance and low power through increased parallelism and total focus on power savings. The CPU supports an internal bus structure that is composed of one program bus, one 32- bit data read bus and two 16-bit data read buses, two 16-bit data write buses, and additional buses dedicated to peripheral and DMA activity. These buses provide the ability to perform up to four 16-bit data reads and two 16-bit data writes in a single cycle. The device also includes four DMA controllers, each with 4 channels, providing data movement for 16 independent channel contexts without CPU intervention. Each DMA controller can perform one 32-bit data transfer per cycle, in parallel and independent of the CPU activity.

The C55x CPU provides two multiply-accumulate (MAC) units, each capable of 17-bit x 17-bit multiplication and a 32-bit add in a single cycle. A central 40-bit arithmetic and logic unit (ALU) is supported by an additional 16-bit ALU. Use of the ALUs is under instruction set control, providing the ability to optimize parallel activity and power consumption. These resources are managed in the Address Unit (AU) and Data Unit (DU) of the C55x CPU.

Product Features

• CORE:

– High-Performance, Low-Power, TMS320C55x Fixed-Point Digital Signal Processor

• 13.33- to 5-ns Instruction Cycle Time

• 75- to 200-MHz Clock Rate

• One or Two Instructions Executed per Cycle

• Dual Multiply-and-Accumulate Units (Up to 450 Million Multiply-Accumulates per Second [MMACS])

• Two Arithmetic and Logic Units (ALUs)

• Three Internal Data or Operand Read Buses and Two Write Buses

• Software-Compatible with C55x Devices

• Industrial Temperature Devices Available

Product Applications

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• • Digital Two-Way Radios

• • Low-Power Analytics Applications (such as Speech Recognition, Vision Sensing, and Fingerprint Biometrics)

• • Voice Applications (such as Voice Recorders, Hands-Free Kits, and Voice-Enhancement Subsystems)

• • Audio Devices (such as Echo-Cancellation Headphones and Speakerphones or Wireless Headsets and Microphones)

• • Portable Medical Devices
  

Product Specifications

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