DesignWare IP for IoT SoC Designs The Internet of Things (IoT) is connecting billions of intelligent “things” to our fingertips. The ability to sense countless amounts of information that communicates to the cloud is driving innovation into IoT applications such as wearable devices and machine-to-machine applications. Synopsys provides a comprehensive portfolio of IP that meets the specific requirements of IoT SoC designs including silicon-proven interface IP and analog IP, low-power embedded memories and logic libraries, energy-efficient processor cores and integrated subsystems. Wearable devices Machine to machine Smart appliances Wearable infotainment Safety and security Smart cities metering Fitness and health Commerce Figure 1: Examples of wearable devices and machine-to-machine applications The “Thing” in Internet of Things What’s Trending in Edge Devices The Internet of Things is a vast array of applications starting from Innovations are driving growth of the Internet of Things including simple motion sensors and lighting systems to more advanced the increase value of the information produced, longevity of battery systems that require leading-edge control theory, rich graphic operated devices, and low cost and easy–to-use methods to add content and more. The Internet of Things is an extremely connectivity to edge devices. The ability to process advanced sensor fragmented market and can be defined as anything from sensors algorithms and act upon that data in an efficient manner increases to servers, which can include just about everything. If we take the value of fitness and health and wearable infotainment as well as a more pragmatic view, the increase in the number of “Things” machine-to-machine applications. The efficiency advancements not will come mainly from connecting both “brown field” (existing) only improves the content of the data but also extends battery life. and “green field” (new) “edge devices” to the internet. These are The maturity of wireless technologies including Bluetooth Smart devices that do the actual sensing, actuation and communicate to hubs, concentrators, and aggregators, most commonly used in commercial security systems, home routers, or mobile phones. (often known as Bluetooth Low Energy), WiFi, Zigbee, and other competing 802.15.4 standards have helped clear the path to better interoperability. Furthermore the technology alignment of IP in specific process nodes help justify more advanced integration including the Gartner estimates over 10 billion of these ”Things” will ship in 2020 advent of smart sensors and integration of high-performance analog but only connected lights are expected to be more than 5% of that and wireless connectivity. With the momentum around The Internet number. This is just one illustration of the very fragmented set of of Things, the investment, resources, and exposure available for edge applications, all with very different design challenges. device development has a direct impact on innovation. To more effectively segment the IoT edge device market, it’s The numerous applications within the IoT space make it difficult to important to understand the system architectures, environment identify common trends. However trends can be found in three conditions, wireless connectivity needs and overall functions common architectures. These architectures include application offered to the end user. With these factors taken into consideration, processors (high-end IoT), microcontrollers, (low-end IoT – MCU) there are two main segments of edge device applications including and smart analog, each with their own set of advantages. wearable devices and machine-to-machine (See Figure 1). The wearable device market includes applications such as wearable infotainment and fitness and health. Machine-to-machine applications consist of smart appliances, safety and security, smart cities metering and commerce. 2 DesignWare IP for IoT SoC Designs SoC Logic libraries Radio (WiFi, Bluetooth) Display MIPI GPIO SoC LPDDR2/3 CPU Ext flash memory controller System logic SD/eMMC System logic Sensor subsystem Logic libraries DesignWare IP SRAM ROM Bluetooth smart radio Sensor subsystem Customer/ 3rd party IP CPU CPU USB 2.0 host/OTG I2C · Gyroscope SPI ADC Sensors · Accelerometer Touch/ gesture · Compass Figure 2: Example of high-end SoC block diagram A system that requires a rich OS, such as Android and or Linux typically requires external DRAM and a processor that supports USB 2.0 host/OTG Internal flash I2C SPI SRAM ROM ADC Touch/ gesture DesignWare IP Customer/ 3rd party IP Sensors · Heart rate · Gyroscope · Accelerometer · Compass Figure 3: Example of low-end MCU block diagram Architecture Examples The three architectures described above tend to be designed in an MMU. These applications usually include vision, voice, audio, lagging technology processes to save cost, power and leverage and graphics functionality. Resource intensive communications analog, wireless, and/or specialized memory integration. The protocols also often outgrow the constraints microcontrollers high-end applications processors (see Figure 2) are commonly inherently have, forcing the use of high performance processor being developed in 28-nm process technologies Many off-the-shelf cores and external memory interfaces. microcontroller solutions (see Figure 3) are available in 90nm but will likely High-end system architectures leverage the system IP from SoCs be migrating to 55-nm process technologies. specifically designed for e-readers, tablets, and mobile phones and Smart Analog solutions (see Figure 4) including power management often do not meet the customers’ power or system cost requirements. and sensors, 180nm is currently the process of choice, however, Microcontroller architectures can be limited by the amount of on-chip NVM will most likely migrate to more advanced nodes when it makes and processing power available from the most popular processing cores. sense. This offers room for innovation for IoT-specific SoC and IP development. A traditional microcontroller can fit into many IoT applications very Radio (ISM, 802. 15.4, Bluetooth Smart) effectively due to the low power design and integrated analog functions. Furthermore, Non-Volatile Memory (NVM) often provides efficient power budgets and lower system costs for edge devices. Audio System Logic NVM Finally, adding intelligence to a sensor application or other Sensor subsystem traditional analog function has traditionally incorporated an additional microcontroller or applications processor. Power There is currently momentum around adding intelligent to ARC EM processor MEMs sensors and power management devices by integrating processing cores and NVM. Sensor I2C SPI SRAM/ ROM DesignWare IP Customer/ 3rd party IP ADC/ comparator Figure 4: Example of smart analog SoC block diagram DesignWare IP for IoT SoC Designs 3 DesignWare IP SoC Impact Thick oxide “always-on” logic libraries Provides the lowest leakage for always-on wakeup circuits during sleep states Ultra-high density logic libraries Multi-bit flip-flops Power Optimization Kits (POKs) 6-track logic libraries optimize circuits for performance, power and area tradeoffs Multi-bit flip-flops & pulse latches minimizes area and power consumptions Power Optimization Kits (POKs) enable low power consumption, while sustaining optimal performance STAR Memory System® (SMS) Integrated test, repair and diagnostics: BIST for embedded Flash, an industry 1st Memory compilers Incorporates advanced power management features to reduce leakage by up to 70%, controlled via a single pin via ROM Ultra low-power anti-signature via ROM reduces leakage up to 20% Sensor IP Subsystem Delivers significant area savings with lower latency due to tightly coupled memory and sensor interface peripherals as well as hardware accelerators to improve performance and reduce area ARC EM processors Power- & area-efficient processors based on extensible ARCv2DSP architecture. Ideal for deeply embedded (microcontroller) applications including functions such as voice, sensor fusion and other complex algorithms ARC HS processors Delivers maximum performance efficiency (DMIPS/mW and DMIPS/mm2) for high-end IoT systems. Ideally suited for embedded applications with high-speed data and signal processing requirements. Configurability and extensible instruction set allows designers to tailor each processor instance for the optimum balance of performance, power and area NVM – Medium Density Supports up to 64 KB to include most control algorithms & libraries including DSP, math, sensor fusion, motor control, power conversion, security, touch, etc. NVM – Ultra Low Power Optimized for wireless applications such as RFID/NFC tags NVM – Trim Optimized for small area for sensors and analog ICs NVM - EEPROM High endurance EEPROM family delivers up to 1M write cycles Analog-to-Digital Converters ADCs with up to 16-bit resolution and 5 Msps conversion rates exceed leading on-chip implementations USB 2.0 Certified USB 2.0 IP supporting host, device, OTG and Battery Charging with power down features DDR Delivers a complete multi-protocol DDR interface IP solution including LPDDR2, LPDDR3 and DDR3 SDRAM memories MIPI Compliant to MIPI CSI-2 specification rev 1.0. Supports 1 to 4 Rx data lanes with D-PHY PPI interface and 32-bit pixel output format Accelerating Internet of Things SoC Designs with Proven IP 1. Faster time to market IP requirements for SoCs that go into IoT applications vary depending 3. Ability to evaluate cost & performance tradeoffs of building on the specific application. Synopsys provides designers with a broad an application from off the shelf components or investing in portfolio of interface, embedded memory, logic library, processor and ASSPs & ASICs. 2. Early software bring-up, debug and test analog IP as well integrated IP subsystems to address the design needs of high-end systems, low-end MCUs and smart analog SoCs. With support In addition to the reference designs and development kits, Synopsys for advanced features such as “always-on” logic libraries, multi-bit flip-flop works closely with partners to ensure all the relevant software and memory compilers as well as anti-signature ROMs and power efficient tools needed to develop systems is available. This includes operating processor architectures, Synopsys’ DesignWare® IP helps address the systems, communication stacks, IDEs, client services, virtual specific design challenges for the Internet of Things applications. machines and much more. IP Accelerated: Fast Prototyping, Software Development, and Customized IP Subsystems Summary Prototyping and software development continues to be a large improve the sensory and communications interfaces, Synopsys portion of the total investment of designing an application for the provides a broad portfolio of IP that is optimized for IoT and will help Internet of Things. To significantly ease IP integration into SoCs and you achieve your design goals faster and with significantly less risk. Whether the goal is to provide reduce power, add connectivity, or accelerate the software development effort, Synopsys provides DesignWare IP Prototyping Kits, DesignWare IP Virtual Development For more information on DesignWare IP for the Internet of Things, Kits, and integrated IP subsystems as part of the IP Accelerated visit: www.synopsys.com/ip-iot initiative. This provides numerous benefits including: Synopsys, Inc. 700 East Middlefield Road Mountain View, CA 94043 www.synopsys.com ©2014 Synopsys, Inc. All rights reserved. Synopsys is a trademark of Synopsys, Inc. in the United States and other countries. A list of Synopsys trademarks is available at http://www.synopsys.com/copyright.html. All other names mentioned herein are trademarks or registered trademarks of their respective owners. 08/14.RP.CS34785.
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