Texas Instruments TMS320C553x Fixed-Point DSPs
Texas Instruments TMS320C553x Fixed-Point Digital Signal Processors (DSPs) are designed for low-power applications and based on the TMS320C55x DSPC55x DSP generation CPU processor core. The architecture achieves high performance and low power through increased parallelism and total focus on power savings. TI TMS320C553x DSPs support an internal bus structure 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.
This device also includes four DMA controllers, each with 4 channels, providing data movement for 16-independent channel contexts without CPU intervention. The general-purpose input and output functions along with the 10-bit SAR ADC on the TMS320C553x provide sufficient pins for status interrupts, and bit I/O for LCD displays, keyboards, and media interfaces. The TI TMS320C553x DSP included a tightly-coupled FFT Hardware Accelerator. The tightly-coupled FFT Hardware Accelerator supports 8 to 1024-point (in power of 2) real and complex-valued FFTs.
Features
- High-performance, low-power, TMS320C55x fixed-point digital signal processor
- 20-, 10-ns instruction cycle time
- 50-, 100-MHz clock rate
- One/Two instruction(s) executed per cycle
- Dual multipliers [up to 200 million multiply-accumulates per second (MMACS)]
- Two arithmetic/logic units (ALUs)
- Three internal data/operand read buses and two internal data/operand write buses
- Software-compatible with C55x devices
- Industrial temperature devices available
- 320K bytes zero-wait state on-chip RAM, composed of:
- 64K bytes of dual-access RAM (DARAM), 8 blocks of 4K × 16-Bit
- 256K bytes of single-access RAM (SARAM), 32 blocks of 4K × 16-Bit
- 128K bytes of zero wait-state on-chip ROM (4 blocks of 16K × 16-Bit)
- Tightly-coupled FFT hardware accelerator
- Peripheral:
- Direct memory access (DMA) controller
- Four DMA with 4 channels each
- Three 32-Bit general-purpose timers
- One selectable as a watchdog and/or GP
Applications
- Wireless audio devices (e.g., headsets, microphones, speakerphones)
- Echo cancellation headphones
- Portable medical devices
- Voice applications
- Industrial controls
- Fingerprint biometrics
- Software-defined radio
Videos
Related Products
Texas Instruments TMS320C5515 Fixed-Point Digital Signal Processors
Core achieves low power & high performance through increased parallelism & focus on power savings.
Inilathala: 2011-08-30
| Na-update: 2022-03-11