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TMX320VC5505AZCH Datasheet(PDF) 2 Page - Texas Instruments

Part # TMX320VC5505AZCH
Description  Fixed-Point Digital Signal Processor
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
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TMX320VC5505AZCH Datasheet(HTML) 2 Page - Texas Instruments

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TMS320VC5505
SPRS503B – JUNE 2009 – REVISED JANUARY 2010
www.ti.com
1.2
Description
The TMS320VC5505 is a member of TI's TMS320C5000™ fixed-point Digital Signal Processor (DSP)
product family and is designed for low-power applications.
The TMS320VC5505 fixed-point DSP 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
TMS320VC5505 also includes four DMA controllers, each with 4 channels, providing data movements 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/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.
The C55x CPU supports a variable byte width instruction set for improved code density. The Instruction
Unit (IU) performs 32-bit program fetches from internal or external memory and queues instructions for the
Program Unit (PU). The Program Unit decodes the instructions, directs tasks to the Address Unit (AU) and
Data Unit (DU) resources, and manages the fully protected pipeline. Predictive branching capability avoids
pipeline flushes on execution of conditional instructions.
The general-purpose input and output functions along with the 10-bit SAR ADC provide sufficient pins for
status, interrupts, and bit I/O for LCD displays, keyboards, and media interfaces. Serial media is supported
through two MultiMedia Card/Secure Digital (MMC/SD) peripherals, four Inter-IC Sound (I2S Bus™)
modules, one Serial-Port Interface (SPI) with up to 4 chip selects, one I2C multi-master and slave
interface, and a Universal Asynchronous Receiver/Transmitter (UART) interface.
The VC5505 peripheral set includes an external memory interface (EMIF) that provides glueless access to
asynchronous memories like EPROM, NOR, NAND, and SRAM. Additional peripherals include: a
high-speed Universal Serial Bus (USB2.0) device mode only, and a real-time clock (RTC). This device
also includes three general-purpose timers with one configurable as a watchdog timer, and a analog
phase-locked loop (APLL) clock generator.
In addition, the VC5505 includes 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.
The VC5505 is supported by the industry’s award-winning eXpressDSP™, Code Composer Studio™
Integrated Development Environment (IDE), DSP/BIOS™, Texas Instruments’ algorithm standard, and the
industry’s largest third-party network. Code Composer Studio IDE features code generation tools including
a C Compiler and Linker, RTDX™, XDS100™, XDS510™, XDS560™ emulation device drivers, and
evaluation modules. The VC5505 is also supported by the C55x DSP Library which features more than 50
foundational software kernels (FIR filters, IIR filters, FFTs, and various math functions) as well as chip
support libraries.
2
Fixed-Point Digital Signal Processor
Copyright © 2009–2010, Texas Instruments Incorporated
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