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Xilinx adds MPSoCs for ADAS and autonomous driving

Wed, Nov 13, 2019

The Xilinix Automotive (XA) Zynq UltraScale+ MPSoC 7EV and 11EG have been added to the company’s automotive portfolio. According to the company, the programmable capacity, performance and I/O capabilities enable high-speed, data aggregation, pre-processing, and distribution (DAPD) as well as compute acceleration for L2+ to L4 advanced driver assistance systems (ADAS) and autonomous driving applications.

The XA Zynq UltraScale+ MPSoC 7EV and 11EG offer over 650,000 programmable logic cells and nearly 3,000 DSP slices, representing a 2.5-fold increase compared with the previous largest device.

The XA 7EV contains a video codec unit for h.264/h.265 encode and decode; the XA 11EG includes 32 12.5Gbits per second transceivers and provides four PCIe Gen3x16 blocks. At the launch, Xilinx said the devices provide the performance required by carmakers, robotaxi developers and Tier-1 suppliers to perform power-efficient DAPD and compute acceleration that allows for scalable production deployments for autonomous driving vehicles.

The XA Zynq UltraScale+ MPSoC portfolio is qualified to AEC-Q100 and integrates both Xilinx programmable logic and a feature-rich 64-bit quad-core Arm Cortex-A53 and dual-core Arm Cortex-R5-based processing system that is certified to ASIL-C level in the low power domain. These characteristics and the high data throughput capability of the XA 7EV and XA 11EG accelerate the deployment of autonomous.

The XA 7EV and XA 11EG are available for order today. Both are supported by Vitis and Vitis AI software.

Xilinx develops adaptive processing platforms that enable rapid innovation from the endpoint to the edge to the cloud. Xilinx invented the FPGA, hardware programmable SoCs, and the ACAP.

http://www.xilinx.com

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Automotive-certified level shifters assist ADAS development

Tue, Nov 05, 2019

Two high-speed, automotive-compliant voltage translators for use in environments with ambient temperatures up to 125 degrees C are available from Diodes. The PI4ULS5V108Q and PI4ULS5V202Q are designed for use in advanced driver-assistance systems (ADAS), infotainment, and telematics equipment.

Both shifters are compatible with either push-pull or open-drain connections. They have bi-directional flexibility with automatic direction sensing simplifies level shifting between bus interfaces, such as SMBus, PMBus, or I2C devices, by eliminating any requirement for a direction-control signal.

The eight-channel PI4ULS5V108Q performs up-translation at up to 100MHz and down-translation at over 100MHz. This performance makes it suitable for use in high data-rate interfaces, says the Diodes. Designers can ensure fast exchanges across SPI or other interfaces, with no limitation due to level shifting. This enables data transfers between system-on-chip (SoC) and peripheral components to be executed with optimum efficiency.

The PI4ULS5V202Q is a two-channel translator with internal 10kOhm pull-up resistors, allowing direct connection to interfaces with open-drain topology, such as I2C ports. The large maximum voltage-translation range of 1.2 to 5.5V enables the device to work with a variety of I2C chips and circuit designs. The PI4ULS5V202Q’s high-speed, one-shot detectors at the IC inputs result in fast rise and fall times. The PI4ULS5V202Q is able to support data rates of up to 20Mbits per second.

Both devices are AEC-Q100 grade 1 qualified, for automotive use and PPAP (production part approval process) -capable. They are in production at IATF 16949 certified sites.

The PI4ULS5V108Q is available now in the TSSOP-20 package and the PI4ULS5V202Q is offered in the MSOP-8 package.

Diodes manufactures and supplies application specific standard products within the broad discrete, logic, analogue, and mixed-signal semiconductor markets. Diodes serves the consumer electronics, computing, communications, industrial, and automotive markets. Products include diodes, rectifiers, transistors, MOSFETs, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices, including LED drivers, AC/DC converters and controllers, DC/DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers. Diodes also has timing, connectivity, switching, and signal integrity solutions for high-speed signals.

http://www.diodes.com

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Winbond exploits HyperRAM for AIoT

Thu, Oct 31, 2019

The artificial intelligence of things (AIoT) will consist of automotive electronics, industrial 4.0, and smart home applications, new IoT edge devices and human-machine interface devices, all of which will require new functionality in terms of size, power consumption, and performance. New microcontrollers are being developed to meet these demands with higher performance and lower power consumption and with new RAM options to improve that of the existing SDRAM and pSRAM available.

HyperRAM supports the HyperBus interface and Winbond Electronics offers 32, 64 and 128Mbit devices. Hans Liao, technology manager of DRAMs at Winbond, explained that the computing power, data processing and image display functions of traditional MCUs are limited and that the new IoT devices often have touch panel as image control interface, or require stronger edge computing functions for image processing and speech recognition, requiring higher performance, lower power microcontrollers.

Winbond’s 64Mbit HyperRAM consumes 90 microW at 1.8V, which is about half of a DRAM of the same capacity, claims the company. The power consumption of HyperRAM is only 45 microW at 1.8V in hybrid sleep mode – as opposed to the standby mode of an SDRAM. A low power SDRAM has a larger form factor than HyperRAM, says Winbond.

In addition, HyperRAM has only 13 signal pins, which can greatly simplify the PCB layout design. It also means that when designing end products, developers can use microcontrollers with more pin-out for other purposes or use microcontrollers with fewer pins for cost-effectiveness.

Simplifying control interface is another feature of HyperRAM. Based on pSRAM architecture, HyperRAM is a self-refresh RAM. It can automatically return to standby mode. This means system memory is easier to use, and the development of firmware and drivers is also simplified, says Winbond.

Winbond’s HyperRAM is based on a 38nm process node, which will continue to move toward 25nm, confirms Winbond.

Winbond’s entry to the HyperRAM camp makes it the third supplier, in addition to Cypress and ISSI. Its 32Mbit device has entered mass production, the 64 and 128Mbit are expected to enter mass production in 4Q19 and 1Q20 respectively. Products of 24BGA (automotive grade), 49BGA and KGD are available. The size of 24BGA is 6.0 x 8.0mm², while the 49BGA is only 4.0 x 4.0mm², which targets the consumer wearable market.

http://www.Winbond.com

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Volkswagen and NXP begin on the road to V2X

Wed, Oct 30, 2019

NXP Semiconductors is rolling out its RoadLink V2X (vehicle to everything) communication system in the new Volkswagen Golf. The eighth generation Golf is the first volume European car model equipped with V2X, reports NXP.

V2X can prevent accidents by allowing cars to communicate with each other, independent of car brands and without the support of cellular infrastructure.

Dr. Johannes Neft, head of vehicle body development at Volkswagen, said:“The introduction of V2X, together with traffic infrastructure providers and other vehicle manufacturers, is a major milestone in [safety].”

Torsten Lehman, senior vice president and general manager of Driver Assistance and Infotainment at NXP, added: “After proving our technology in more than one million test days globally, we are pleased that our RoadLINK technology, developed in cooperation with Cohda Wireless, was chosen to enable new levels of safety in Europe’s most popular car model, the new Golf.”

Wi-Fi-based V2X is a mature technology has been tested for more than 10 years. Wi-Fi is available independently of paid cellular services and other developing cellular-based technologies can be added to Wi-Fi-based V2X .

Wi-Fi-based V2X is robust, has low latency and real-time communication – regardless of any car brands, advocates NXP. It enables awareness and communication between cars, road infrastructure like traffic lights or street signs, and other road users such as cyclists and pedestrians.

The technology is collaborative, allowing it to “tap into” surrounding sensor data from mutually equipped cars to warn of hazards and prevent accidents. V2X complements other ADAS sensing technologies such as radar, lidar and cameras.

It helps vehicles to “see” more than a mile ahead and around corners to provide early warning of obstacles, hazards, and road conditions and has the ability to “see” through objects, delivering more information than that obtained through line of sight only, continues NXP. Its sensing capabilities are unaffected by poor weather conditions.

NXP claims to offer the only 5.9 GHz V2X system solution proven in volume production today.

NXP and Volkswagen have collaborated for standardisation of V2X communication that addresses cybersecurity and privacy protection.

http://www.nxp.com

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Xilinx adds MPSoCs for ADAS and autonomous driving

Automotive-certified level shifters assist ADAS development

Winbond exploits HyperRAM for AIoT

Volkswagen and NXP begin on the road to V2X

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