Many commercial aircraft use the ARINC 429 standard, designed in 1977, for safety-critical applications. To know more about AFDX®: A Time-Deterministic application of ARINC 664 part 7, see https://www.logic-fruit.com/blog/arinc-standard/afdx-a-time-deterministic-application-of-arinc-664-part-7/ About Logic Fruit Technologies Logic Fruit Technologies is a product engineering R&D & consulting services provider for embedded systems and application development. We provide end-to-end solutions from the conception of the idea and design to the finished product. We have been servicing customers globally for over a decade. The company has specific experience in various fields, such as -FPGA Design​​​ & hardware​​​ design -RTL​​​ IP Design -A variety of digital protocols -Communication buses as1G, 10G -Ethernet -PCIe​​​ -DIGRF​​​ -STM16​​​/64 -HDMI​​​. Logic Fruit Technologies is also an expert in developing, -software-defined radio (SDR) IPs -Encryption -Signal generation -Data analysis, and -Multiple Image Processing Techniques. Recently Logic Fruit technologies are also exploring FPGA acceleration on data centers for real-time data processing. **Our Social Media Channels** Facebook: https://www.facebook.com/LogicFruit/ ​​​Twitter: https://twitter.com/logicfruit​​​ LinkedIn: https://www.linkedin.com/company/logi… Website: https://www.logic-fruit.com/​​ #LFT​​​ #LogicFruitTechnologies​​​ #LogicFruit​ Interested to view more Slide Shares, Click on the below links, https://www.slideshare.net/LogicFruit/a-designers-practical-guide-to-arinc-429-standard-3pptx https://www.slideshare.net/LogicFruit/a-swift-introduction-to-milstd https://www.slideshare.net/LogicFruit/arinc-the-ultimate-guide-to-modern-avionics-protocol/LogicFruit/arinc-the-ultimate-guide-to-modern-avionics-protocol https://www.slideshare.net/LogicFruit/arinc-629-digital-data-bus-specifications/LogicFruit/arinc-629-digital-data-bus-specifications https://www.slideshare.net/LogicFruit/afdx https://www.slideshare.net/LogicFruit/end-system-design-parameters-of-the-arinc-664-part-7 https://www.slideshare.net/LogicFruit/compute-express-link-cxl-everything-you-ought-to-know https://www.logic-fruit.com/blog/fpga/what-is-fpga/ https://www.slideshare.net/LogicFruit/cxl-vs-pcie-gen-5-the-brief-comparison https://www.slideshare.net/LogicFruit/fpga-technology-development-and-market-trends-in-the-new-decade https://www.slideshare.net/LogicFruit/fpga-design-an-ultimate-guide-for-fpga-enthusiasts

1. AFDX®: A Time-
Deterministic
application of ARINC
664 part 7
*This presentation is the intellectual property of Logic Fruit Technologies . Any plagiarism or misuse is
punishable according to Indian Laws.
November 2022

2. Many commercial aircraft use the ARINC 429 standard, designed in 1977, for safety-critical
applications. A unidirectional bus is used by ARINC 429 with a single transmitter and up to 20
receivers. Two transmission speeds are available: high-speed runs at 100 kbit/s and low-speed runs
at 12.5 kbit/s.
 ARINC 429 operates in such a way that it communicates with its single transmitter in point-to-point
communication, thereby requiring a significant amount of wiring that amounts to extra weight.
Another standard, ARINC 629, introduced for the 777 by Boeing, offered higher data speeds of up to
2 Mbps and allowed a maximum of 128 data terminals.
Airbus developed and patented the (Avionics Full Duplex Switched Ethernet) AFDX® data network to
fix real-time issues for safety-critical avionics applications, initially for the A380. AFDX® is one of the
deterministic Ethernet implementations specified in ARINC Specification 664 Part 7.
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3. The Airbus A350 also uses an AFDX® network, with avionics and systems supplied by Rockwell Collins,
building upon the experience of the A380. Through the EADS Technology Licensing initiative, Airbus and its
parent company European Aeronautic Defence and Space Company (EADS) have made AFDX ® licenses
available, including agreements with Selex ES and Vector Informatik GmbH.
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4. Across several sections, the specification is organized
as follows:
 Part 1 – Systems Concepts and Overview
 Part 2 – Ethernet Physical and Data-Link Layer Specifications
 Part 3 – Internet-based Protocols and Services
 Part 4 – Internet-based Address Structure and Assigned Numbers
 Part 5 – Network Domain Characteristics and Functional Elements
 Part 6 – Reserved
 Part 7 – Deterministic Networks
 Part 8 – Upper Layer Protocol Services
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The physical layer consists of an Ethernet network of star topologies with End Systems and layer two
switches. Using Virtual Links (VL) is the defining characteristic of the network. A logical data path through
the shared network is specified by a VL. It describes a data flow from a single source to one or more
destinations in one direction. 16 bits in the destination MAC address identify the VL. The switches use
this to adequately route the frame.

5. Utilization Aspects:
With the growth of AFDX® is the emergence of Integrated Modular Avionics (IMA). Rather than providing
dedicated hardware for each Line-Replaceable Unit (LRU), a standardized computing platform is
implemented to run one or more avionics subsystems. As per Xilinx, it provides various embedded
development platforms that offer versatility to designers concerning rapid prototyping and system
verification such as ML410 (Virtex-4 FX) and ML510 (Virtex-5 FXT) series.
AFDX® endorses the Asynchronous Transfer Mode (ATM) concepts of the telecoms to overcome the
limitations of IEEE 802.3 Ethernet. Deploying these extensions to the standard ethernet helps in defining a
deterministic network for the avionics that offers a higher Quality of Service (QoS) and Bandwidth. These
networks offer a higher degree of reliability over the single network schemes and operate at speeds of 10
Mbps to 100 Mbps.
To know more AFDX®: A Time-Deterministic application of ARINC 664 part 7
see, https://www.logic-fruit.com/blog/arinc-standard/afdx-a-time-deterministic-application-of-arinc-664-
part-7/
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6. Want to know more?
Click on the below button, to learn more
about the AFDX®.
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