C67x floating-point DSPs and C674x fixed-/floating-point DSPs.

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1 Embedded Processing Overview Texas Instruments has the broadest portfolio of scalable DSP, MCU, differentiated ARM and complementary analog products, offering complete system solutions for electronics manufacturers. This portfolio offers the full range of power/performance requirements ensuring the right combination of attributes for the smallest portable devices to the largest multichannel systems and everything in between. In addition, TI offers design resources including extensive software (including open source), tools, technical training, in-person and online tech support, and engineer-to-engineer forums at ee.ti.com. Visit for technical literature, system block diagrams and more. DaVinci Digital Media Processors: Optimized for Digital Video DaVinci technology consists of scalable, programmable signal processing system on chips (SoCs), accelerators and peripherals, optimized to match the price, performance and feature requirements for a broad spectrum of video end equipments. OMAP Application Processors: Best General-Purpose, Multimedia and Graphics TI s OMAP platform delivers high-performance application processors and a robust support network, allowing for rapid development of multimedia-enhanced devices to general-purpose computer applications that require Linux OS or Windows CE OS. OMAP35x devices target portable navigation devices and media players, Internet appliances and personal medical equipment. OMAP-L1x devices include ARM9 and ARM9 + DSP. High Performance: TMS30C6000 DSP Platform The C6000 DSP platform offers the industry s highest-performance singleand multicore DSPs, ideal for networking, telecommunication, video, imaging, infrastructure, test and equipment, military, and industrial applications. The platform includes C64x high-performance DSPs, Applications Matrix Guideline Audio Automotive Communications Industrial Medical Security Video Wireless Key Feature DaVinci Digital Media Processors Complete tailored video solution OMAP Application Processors Low power and high performance C67x floating-point DSPs and C674x fixed-/floating-point DSPs. Ultra-Low Power TMS30C5000 DSP Platform The C5000 DSP platform offers the industry s lowest standby power and advanced automatic power management for portable products like digital music players, VoIP, hands-free accessories, GPS receivers and portable medical equipment. TMS30C000 3-Bit Microcontroller for Real-Time Control The C000 microcontroller family combines advanced control peripherals with the processing power of a 3-bit core. From the low-cost, high-integration Piccolo MCU to the powerful Delfino floating-point MCU, C000 MCUs offer a broad range of options and are ideal for embedded industrial control applications such as digital motor control, digital power supplies and intelligent sensors. MSP430 Ultra-Low Power Microcontroller Platform The MSP430 family of ultra-low power 16-bit RISC mixed-signal processors provides the ultimate solution for batterypowered measurement applications. Using leadership in both mixed-signal and digital technologies, TI has created the MSP430 MCU, enabling system designers to C6000 Digital Signal Processors High performance C5000 Digital Signal Processors Ultra-low power C000 Microcontrollers Performance, integration for greener industrial applications MSP430 Microcontrollers Ultra-low power Texas Instruments simultaneously interface to analog signals, sensors and digital components while maintaining unmatched low power. Sitara ARM Microcontrollers The high-performance Sitara ARM-based microprocessors include the ARM Cortex -A8 and ARM9. The platform also includes the AM1x and AM37x MPUs, which offer a software-compatible roadmap for customers using TI s OMAP35x and OMAP-L1x processors. Stellaris 3-Bit ARM Cortex-M3 MCUs Stellaris 3-bit MCUs combine advanced connectivity options with the generalpurpose processing performance of the industry-standard ARM Cortex-M3 core for cost-conscious applications. Software and Development Tools TMS30 DSPs are supported by expressdsp software and development tools, including Code Composer Studio IDE, DSP/BIOS kernel, the TMS30 DSP algorithm standard and numerous reusable, modular software from the largest developer network in the industry. Complementary Analog Products TI offers a range of complementary data converter, power management, amplifiers, interface and logic products to complete your design. Sitara Microprocessors Low power, high performance Stellaris 3-Bit ARM Cortex-M3 MCUs Open architecture software, rich communications options 17

2 TMS30C55x Ultra-Low Power DSP Generation, Fixed-Point Industry s Best Combination of Standby and Dynamic Power Get samples, data sheets, tools and app reports at: Specifications TMS30C5000 low-power platform to provide a broader portfolio of the industry s most power-efficient DSPs with standby power as low as 0.1 mw and performance up to 600 MIPS more power modes extend battery life memory and a variety of peripheral offerings on a smaller form factor DSPs more value-added third-party solutions speed time to market Applications Feature-rich portable voice/audio products, hands-free car kit, noise cancellation headset, low-cost VoIP system and accessories, DECT/USB phone, softwaredefined radio, portable medical devices (ECG, digital stethoscope, pulse oximeter), fingerprint pattern recognition, metering, measurement and embedded signal processing applications in general TMS30C5504/C5505 DSPs Best-in-Class Standby and Dynamic Power with incremental features and pricing block diagram TMS30C5501/C550 DSPs Price and Performance Leaders ports (McBSPs),UART, I C TMS30C5515 DSP High Performance with Low Power fixed-point DSP 16.67/13.33/10/8.33-ns instruction cycle time (EMIF) Increasing Performance/Power Efficiency/System Density 4 Software Compatible TMS30C5000 DSP C5000 Devices 60 GPIO 3-KHz PLL EMIF/ NAND UART MMC/SD 6 IS Client Telecommunication Solutions IS Audio, Voice, Hands-Free Kit, Radio Memory ROM 18 KB IS Portable Medical, Biometrics GPIO MMC/SD C55x DSP Core SPI FFT DARAM 64 KB GPIO LCD IS IC Memory SARAM 19/56 KB 13 RTC 4-Ch. 4-Ch. 4-Ch. 4-Ch. DMA DMA DMA DMA C5000 Multicore Devices Telephony, VoIP/Accessories, Communication Embedded Signal Processing, Measurement C5000 DSP Platform Roadmap The C5000 DSPs span the applications spectrum with core performance extended to 300 MHz Timers 10-Bit SAR ADC Peripheral Bus USB.0 Slave ANA LDO 4 7 C55x Devices TMS30C5505 DSP Block Diagram The C5505 DSP is one of the latest TI C5000 DSPs with the best-in-class combination of standby and active power and an integration level optimized for portable audio/voice, medical and many other applications. INT JTAG C55x Devices C54x, C55x Devices C54x, C55x Devices 7 18 Embedded Processing & DSP Resource Guide 011

3 TMS30C64x DSP Generation, Fixed-Point Get samples, data sheets, tools and app reports at: Specifications mance DSPs ranging from sub horsepower tionality with high-performance, single- and multicore DSPs compatibility within C6000 DSP platform development environment with the industry s best optimizing C compiler Applications Wireless infrastructure (adaptive antennas, basestations, gateways), telecom infrastructure (RAS, PBX, VoIP), digital video (conferencing, surveillance, encoders, statistical remultiplexor/ digital signage), imaging (medical, machine vision/inspection, defense/ radar/sonar) Features with new instructions to accelerate performance in key applications quently used instructions available in more functional units more registers, wider load/store data paths and enlarged two-level cache Peripherals controller interface for ATM (UTOPIA) Increasing Performance, Memory and Peripherals Software Compatible C64x DSP TMS30C644 DDR 3 EMIF 16 PCI 33 or VLYNQ Communications Interface RMII/MII or HPI RMII IC C6414/5/6 DSP C6410//3/8 DSP OSC PLL JTAG EDMA 3.0 DSP Subsystem L1D 80 KB C64x+ Core L1P 3 KB C6474 DSP C645/4/5/7 DSP C641/4 DSP DDR PLL L 18-KB Cache C64x Multicore C64x C64x Timer WDT GPIO McBSP McBSP or McASP Timer PWM 3 UART Please check user guide for MUXing options. High-Performance Multicore High-Performance Single Core Performance Value DSP C6000 DSP Platform Roadmap The C6000 DSP platform includes a wide range of devices that raise the bar in performance, set new levels of cost efficiency and offer on-chip peripheral integration to enable developers of highperformance systems to choose the device that best suits their specific application. C64x DSPs come in two flavors C641 and C644 DSPs. These DSPs are pin-for-pin compatible, start from U.S. $10.10 (1-ku volumes) and are completely scalable in speed and/or feature set. Both new DSPs are available in 400-, 500- and 600-MHz speeds and have the same raw processing power, but differ in on-chip memory and peripherals. 19

4 Digital Media Processors with DaVinci Technology Digital Media Processors Get samples, data sheets, tools and app reports at: Targeted Applications (routers) endpoints equipment conference units (MCUs)/gateways (DVRs) Segment Device DM64x DM644x DM643xx DM64x DM6441 DM GHz DM647/8 DM355 DM GHz DM647/8 DM6467T DM6467D DM357 DM6467T DM6467 Time Digital Media Processors: Tuned for Digital Video End Equipments DaVinci Processor CPU MHz Capture/Display DM335 ARM96 135, 16 Capture/Display DM355* ARM96** 135, 16, 70 Capture/Display DM357 ARM96 70 Capture/Display DM365 ARM96 16, 70, 300 Capture/Display DM6467 C64x+/ARM96 594, 79/97, Capture/Display DM648* C64x+ 70, 800, 900 Capture/Display DM647* C64x+ 70, 800, 900 Capture/Display DM6446* C64x+/ARM96 300/600 Capture/Display DM6443 C64x+/ARM96 300/600 Display DM6441* C64x+/ARM96 56/51 Capture/Display DM6437 C64x+ 400, 500, 600, 700 Capture/Display DM6435 C64x+ 400, 500, 600, 700 Capture DM6433 C64x+ 400, 500, 600, 700 Display DM6431 C64x+ 300 Capture *Includes video imaging coprocessor. **Includes MPEG-4/JPEG coprocessor. Includes DaVinci high-definition video/imaging coprocessor. DM DM365 DM64x+ DM DM64x+ DM3x+ Infrastructure Video Client Video Portable Video Digital Media Processors Roadmap Digital video customers benefit from TI s DaVinci technology portfolio of digital media processors, development tools, software and support, enabling them to accelerate development and fuel innovation. DaVinci Technology 0 Embedded Processing & DSP Resource Guide 011

5 DaVinci Technology Overview DaVinci technology is a signal processingbased solution tailored for digital video applications that provides video equipment manufacturers with integrated processors, software, tools and support to simplify the design process and accelerate innovation. DaVinci Processors Reduce System Cost The portfolio of DaVinci processors consists of scalable, programmable signalprocessing system-on-chips (SoCs), accelerators and peripherals, optimized to match the price, performance and feature requirements for a broad spectrum of video end equipments. The DaVinci technology portfolio includes: TMS30DM646x digital media processors DSP-based SoCs specifically video transcoding at 10x the performance and 1/10th the price. The DM6467 consists of an integrated ARM96EJ-S core, TMS30C64x+ DSP core, high-definition video/imaging conversion engine and targeted video port interfaces. The DM6467 processor is specifically designed to address the commercial and consumer markets, such as media gateways, multipoint control units, digital media adapters, digital video servers and recorders for the security market and IP set-top boxes (STBs). TMS30DM644x digital media processors based on an ARM96 processor and the C64x+ DSP core. The TMS30DM6446, TMS30DM6443 and TMS30DM6441 processors are ideal for applications and end equipments such as video phones, automotive infotainment and IP STBs. TMS30DM643x digital media processors Based on the C64x+ DSP core and priced as low as U.S. $9.95*. TMS30DM6437, TMS30DM6435, TMS30DM6433 and TMS30DM6431 processors are ideal for cost-sensitive applications and include special features that make them suitable for automotive market applications such as lane departure and collision avoidance, as well as machine-vision systems, robotics and video security. TMS30DM64x digital media processors TMS30DM64x digital media processors are optimized for video and include a range of highperformance and low-cost options. The TMS30DM64x generation of digital media processors are fully programmable and offer industry-leading performance for the most demanding streaming multimedia and multichannel video security and infrastructure applications, including digital video recorders (DVRs), IP video servers, machine-vision systems and high-performance imaging applications. In addition, TI offers a wide range of complementary analog parts, easy-to-use development tools, extensive video and imaging third-party algorithms and more. TMS30DM3x digital media processsors Developers can now deliver cost-effective solutions for crystal clear both portable and plugged devices. The DM3x generation features an ARM9 some devices with video coprocessing and bundled codecs to speed development efforts, all with a video-processing subsystem adding intelligence to video processing. The DM3x generation, including DM335, DM355, DM357 and DM365 processors, is ideal for cameradriven applications as well as videoplayback devices such as IP cameras, video doorbells, video conferencing, digital signage, portable media players and more. *Pricing valid at 10 ku 1

6 OMAP35x Platform System-Level Applications Processors Get samples, data sheets, tools and app reports at: Applications electronics Key Features core Clock gating and integrated sleep modes reduce power without loss of performance SmartReflex technology and dynamic voltage frequency scaling graphics and video core and multimedia rich peripherals: USB.0, UART, MMC/SD, display, camera interface POWERVR SGX graphics accelerator with software library for 3-D graphics TMS30C64x+ DSP and hardware video accelerator with DaVinci software Performance Device Production Sampling In Development Future OMAP3503 ARM Cortex -A8 CPU Peripherals Serial Interfaces McBSP 5 McSPI 4 OMAP3530 OMAP355 OMAP3515 Time The OMAP applications processors platform delivers a variety of high-performance applications processors with fast, portable power and a robust support network with a software portfolio that includes open source. The complete platform allows for differentiation and rapid development of applications from multimedia-enhanced devices to general-purpose computer applications that require Linux or Windows CE class operating systems. IC 3 UART UART w/irda C64x+ DSP and Video Accelerators (355/3530 only) POWERVR SGX Graphics Accelerator (3515/3530 only) L3/L4 Interconnect Connectivity USB.0 HS OTG Controller HDQ/1-wire USB Host Controller OMAP35x OMAP35x LCD Controller Cortex-A8 Display Subsystem Video Enc System Timers GP 1 WDT Program/Data Storage SDRC MMC/ SD/ GPMC SDIO 3 10-bit DAC 10-bit DAC Camera I/F Image Pipe Parallel I/F OMAP OMAP35x application processors are based on the ARM Cortex -A8 core with more than four times the processing power of today s 300-MHz ARM9 devices. The superscalar 600-MHz Cortex-A8 core is integrated into four new OMAP35x applications processors. Embedded Processing & DSP Resource Guide 011

7 TMS30C000 Microcontrollers, Fixed-Point and Floating-Point MCU Control, 3-Bit Performance Get samples, data sheets, tools and app reports at: Specifications floating-point option compatibility between fixed-point and floating-point C8x platform controllers qualified for automotive applications Applications Green energy (solar, wind, fuel cells), digital motor control (home appliances, industrial drives, medical), digital power supplies (telecom and server rectifiers, wireless basestations, UPS), automotive (electric power steering, driver s Features 3-bit controllers unit on F83xx generation fies control system development accumulate performance and code efficiency Peripherals password protection 80-ns conversion time cycle modulation with down to 65-picosecond accuracy generation of any switching waveform easy motor feedback TMS30C000 Microcontroller Platform Roadmap The C000 controller platform provides an optimized combination of DSP performance and MCU integration for digital control systems. The C000 microcontroller platform provides an optimized combination of 3-bit performance and integration for digital control systems. Not all devices contain all modules shown. 3

8 MSP430 Microcontrollers Ultra-Low Power, Easy-to-Use, 16-Bit RISC Microcontrollers Get samples, data sheets, tools and app reports at: Key Applications Key Features 16-bit RISC CPU enables new applications at a fraction of the code size Ultra-low power architecture and flexible clock system extends battery life: 0.1-μA RAM retention <1-μA RTC mode <30 μa/mips (flash) <110 μa/mips (RAM) Increased performance 1.8-V ISP flash erase and write Fail-safe, flexible clocking system User-defined bootstrap loader Up to 1-MB linear memory addressing Innovative features Multichannel DMA supports data movement in standby mode Industry-leading code density More design options including USB, RF, LCD interface Integrated intelligent peripherals including a wide range of highperformance analog and digital peripherals to offload the CPU Easy to get started: Complete development tools starting at only US$0 with integrated development environments available free of charge New! CC430 RF Systems-on-Chip formats Device Production Development G = Value Line (Devices $0.5 USD) F = Flash Gxx1 devices xx-catalog 6 MIPS KB Flash KB RAM 500-nA Standby 3.6 V alue Line (Gxx) I/O devices 1xx-Catalog IPS 0KB flash 3.6 V MSP430 roadmap F3x0 Fxx F1x F61x F41x F3x-F4x F1x1 F0xx F15x-F16x Gxx3 16 KB, CapTouch F13x-F14x I/O F44x F1xx Fx4x F11xx Fx4x0 F41x FE4x F41x Gxx 8 KB, CapTouch F55x USB F541x FG461x Fx43x Fx47x F47x4 CC430 RF F543xA F550x/10 USB CC430 High integration reduces complexity, lets designers do more with less. MSP430x1xx Flash/ROM-based MCUs offering 1.8-V to 3.6-V operation, of peripherals. MSP430Fxx Flash-based family featuring even lower power and up to 16 MIPS with 1.8-V to 3.6-V operation. Additional enhancements include ±1 percent on-chip very-low-power oscillator, internal pull-up/pull-down resistors and low-pin-count options. MSP430x4xx Flash/ROM-based devices offering 1.8-V to 3.6-V opera- F5/663x BGM, Catalog F51x Lighting L09 0.9V Native F665x 51 KB flash, LCD F53xx Gen Purpose The New Generation 5xx-6xx 5 MIPS KB flash 4 KB RAM 3.6 V USB, RF connectivity 6xx: LCD controller New low-power modes F438/F439 F471xx F43x devices 4xx: LCD and MIPS available 0 KB flash KB RAM CD controller 60 segments 3.6 V 16 MIPS with FLL + SVS along with an integrated LCD controller. Ideal for lowpower metering and medical applications. MSP430F5xx/6xx microcontroller family featuring the lowest power consumption and performance up to 5 MIPS. It offers a wide operating voltage range from 1.8 V to 3.6 V. Features include an innovative power management module for optimizing power consumption, an internally controlled voltage regulator, integrated LDC driver on select devices and a wide 4 Embedded Processing & DSP Resource Guide 011

9 16-Bit RISC CPU accumulator bottleneck programming and cost The MSP430 MCU s orthogonal architecture provides the flexibility of 16 fully addressable, single-cycle 16-bit CPU registers and the power of a RISC. The modern design of the CPU offers versatility using only 7 easy-to-understand instructions and seven consistent addressing modes. This results in a 16-bit low-power CPU that has more effective processing, is smaller-sized and more code-efficient than other microcontrollers. Develop new ultra-low power, high-performance applications at a fraction of the code size. 15 RO/PC Program Counter R1/SP Stack Pointer R/SR/CG1 Status R3/CG Constant Generator R4 General Purpose R15 General Purpose The MSP430 CPU core with sixteen 16-bit registers, 7 core instructions and seven addressing modes results in higher processing efficiency and code density. 0 Ultra-Low Power Performance The MSP430 microcontroller was designed to provide industry-leading ultralow power performance. A flexible clocking system, multiple operating modes and zero-power always-on brown-out reset (BOR) are implemented to reduce power consumption and dramatically extend battery life. The MSP430 BOR function is always active, even in all low-power modes, to ensure the most reliable performance possible. The MSP430 CPU architecture with 16 registers, 16-bit data and 16-/0-bit address buses minimizes power consuming fetches to memory, while a fast vectored-interrupt structure reduces the need for wasteful CPU software flag polling. Intelligent hardware peripheral features were also designed to allow tasks to be completed more efficiently and independent of the CPU. Many MSP430 customers have developed battery-based products that will last for over 10 years from the original battery. Ultra-Low Power Checklist: 0.1-μA RAM retention <1-μA real-time clock mode Down to 165 μa/mips Flexible Clock System low power standby mode performance processing design, the DCO is active and stable in 1 μs (Fxx) or < 6 μs (x1xx, x4xx, F5xx). MSP430 device-based solutions efficiently use 16-bit RISC CPU high performance in very short burst intervals. This results in very high performance and ultra-low power consumption. The MSP430 MCU clock system is designed specifically for battery-powered applications. Multiple oscillators are utilized to support event-driven burst activity. watch crystal or the internal very-lowpower oscillator (VLO) with no additional used for a background real-time clock self wake-up function. An integrated highspeed digitally controlled oscillator (DCO) used by the high-speed peripherals. By khz Control Digitally Controlled Oscillator Multiple oscillator clock system Very-Low Power Oscillator (VLO) Up to 0 khz f Crystal ACLK 3 khz Low-Power Peripherals MCLK 100 khz 16 MHz CPU and Peripherals 5

10 Sitara ARM Cortex -A8 and ARM9 Microprocessors Get samples, data sheets, tools and app reports at: Specifications accelerator CE baseports Targeted Applications Automation and control, human machine interface, medical, portable data terminals Key Features AM37x Imagination Technology s POWERVR SGX graphics accelerator AM35x Performance Line Value Line Production OMAP35x Cortex -A8 Up to 70 MHz 3-D Graphics LPDDR1 AM17x ARM9, Up to 450 MHz 10/100 ENet PRU SDRAM 1H10 Sampling 1,00 AM18x ARM9 Up to 450 MHz 10/100 ENet PRU SATA LPDDR1, DDR Development AM37x Up to 1 GHz 3-D Graphics LPDDR1 AM35x Up to 600 MHz 3-D Graphics 10/100 ENet CAN DDR H10 1,00 AM389x Up to 1.5 GHz 1-G ENet 3-D Graphics PCIe DDR/3 Advanced Display 1H11 AM387x Up to 1 GHz 1-G ENet Switch 3-D Graphics PCIe, SATA LPDDR1, DDR/3 Advanced Display AM335x Up to 600 MHz 1-G ENet Switch CAN PRU LPDDR1, DDR Speeds shown are for commercial temperature. Dates approximate initial samples. Not all peripherals shown. AM386x Up to 1 GHz 1-G ENet Switch -D/3-D Graphics PCIe, CAN PRU LPDDR1, DDR/3 H11 AM383x Up to 600 MHz 1-G ENet Switch -D/3-D Graphics PCIe, CAN PRU LPDDR1, DDR Sitara ARM Microprocessor Roadmap By utilizing ARM processors and common peripheral sets, Sitara processors offer highly reusable software code bases that allow designers to easily scale within the product family. Multiple operating frequencies, 3-D graphics acceleration, multiple packaging options and temperature operating points further provide optimal flexibility to fit most application requirements. AM18x and AM17x processors Key Peripherals AM37x card interface x3, 1.8-V input/output and display subsystem with LCD controller and video encoder with composite and S-video support AM35x USB.0 On-The-Go (OTG) with built- AM18x other video input options AM3715/3703 processor block diagram The AM37x MPU is one of the latest Sitara MPUs in the family, delivering the highest performance ARM, running at 1 GHz with a x increase in graphics performance and 30 percent reduction in power. AM17x 10/100 Ethernet MAC, LCD controller 6 Embedded Processing & DSP Resource Guide 011

11 Stellaris 3-Bit ARM Cortex -M3 MCUs Get samples, data sheets, tools and app reports at: Overview TI Stellaris MCUs are the industry s leading family of robust, real-time microcontrollers based on the revolutionary Cortex -M3 technology from ARM. The award-winning Stellaris 3-bit MCUs combine sophisticated, flexible mixed-signal system-on-chip integration with unparalleled real-time multitasking capabilities. Complex applications previously impossible with legacy MCUs can now be accommodated with ease by powerful, cost-effective and simple-to-program Stellaris MCUs. With more than 170 devices, the Stellaris family offers the widest selection of precisely compatible MCUs in the industry. The Stellaris family is positioned for cost-conscious applications requiring significant control processing and connectivity capabilities, including motion control, monitoring (remote, controls, power and energy monitoring and conversion, network appliances and switches, factory automation, electronic point-of-sale machines, test and measurement equipment, medical instrumentation, and gaming equipment. In addition to MCUs configured for general-purpose real-time systems, the Stellaris family offers distinct solutions for advanced motion control and energy-conversion applications, real-time networking and real-time internetworking, and combinations of these applications including connected motion control and hard real-time networking. Welcome to the future of microcontrollers. Why Choose Cortex-M3? Cortex-M3 is the MCU version of ARM s V7 instruction set architecture family of cores: tail chaining low power hardware divide instruction set and ARM9 watchpoints and flash patching Capabilities beyond ARM7 for the microcontroller market: (code space) of ARM7 applications applications SERIAL INTERFACES MOTION CONTROL JTAG ARM NVIC Cortex -M3 SWD/T 80 MHz MPU 3 UARTs SSI/SPI 10/100 Ethernet MAC + PHY IEEE 1588 USB Full Speed Host / Device / OTG 3 CAN I C I S Quadrature Encoder Inputs 8 PWM Outputs Timer Comparators PWM Generator Dead-Band Generator PWM Interrupt Why Choose the Stellaris Family? Designed for serious microcontroller applications, the Stellaris family provides the entry into the industry s strongest ecosystem, with code compatibility ranging from US$3.8 in system cost bers to choose from interrupts, are 5-V-tolerant and have programmable drive strength and slewrate control hardware and software functionality provide on-chip system options to balance hardware and software performance free StellarisWare software KB Flash 96-KB SRAM ROM Clocks, Reset System Control Systick Timer 4 Timer/PWM/CCP Each 3-bit or x16-bit Watchdog Timers GPIOs 3-Ch DMA EPI Precision Oscillator R T Battery-Backed C Hibernate LDO Voltage Regulator 3 Analog Comparators x 10-bit ADC Each 8 Channel 1 MSPS Temp Sensor SYSTEM 3 ANALOG Stellaris family block diagram 7

12 Debugging and Optimizing Multicore Processors By Stephen Lau, Product Management, Emulation Technology, Texas Instruments As the number of cores increases, the potential performance of devices increas- formance, embedded developers need to adapt their development from single cores to working multiple cores. Switching to multicore processors presents challenges but the benefit can be well worth it in terms of performance, power efficiency, cost and time to market. To properly scale from a single core to a multicore system requires insight and knowledge to properly partition threads among processing elements. Also, the optimal use of peripherals is key to maintaining performance in a multicore system. Traditional debugging techniques such as synchronous global run, step and halt remain quite effective in multicore systems. timing or synchronization-related problems become challenging. Timing or synchronization-related problems result from dependencies between processing elements, and this can be exacerbated by the shared nature of system peripherals, bus fabrics and multilevel memories. With shared dependencies, handoffs between threads can be incorrect, inefficient or have subtle timing issues. These subtle issues are the most difficult to detect, isolate and repair as they may be intermittent and hard to measure using traditional techniques. Chiplevel tools with insight into the relationship between processing elements and system peripherals, bus and memory are critical to optimizing and debugging the timing or synchronization-related problem in a multicore system. The System Trace capability provided by TI CTools-enabled devices facilitates the debugging and optimization of multicore devices. System Trace is compliant to MIPI STP and is available with devices that feature the TI CTools debugging capability. The System Trace capability aids users in understanding the synchronization and timing between cores and peripherals as well as the performance of cores and key device interfaces. At the chip level, correlation of events is done with an accurate global timestamp, which allows developers to identify and optimize performance in a meaningful system-centric way. For example, a CTools System Trace user could identify the timing of data transfers between processing elements to external memory. Being able to globally correlate processing among threads on multiple processors and peripherals allows structural performance barriers to be identified, giving developers the ability to optimize for an entire system. CTools System Trace has been designed to be easily accessible for developers. Some of the key capabilities are based on familiar concepts. From cores, hardware accelerated messaging is available in the familiar form of hardware-accelerated printf type functions. For developers working on cores with the Linux operating system, a loadable device module is available to make System Trace available as a standard Linux device (ex. /dev/stm). This allows developers to obtain system-level visibility with unmodified Linux applications. The XDS560v System Trace emulator is the first XDS560 -class emulator to provide System Trace capability. The XDS560v System Trace emulator features large on-board memory (up to 18 MB) for System Trace storage and can support one to four pins of System Trace capture. The XDS560v System Trace unit is fully compatible with TI s Code Composer Studio Integrated Development Environment version 4. and newer. This combination gives users a complete robust tool chain for hardware debugging and algorithm development. The combination of the XDS560v System Trace emulator and Code Composer Studio IDE gives a complete hardware development environment that includes an integrated debugging environment, compiler, and full hardware debugging and system trace capability on selected processors. 8 Embedded Processing & DSP Resource Guide 011