CAN bus, CAN-FD and ARINC-825-4 IP, Components and Boards are availble with the SnS option.

Additionally, these hardware and software solutions support 11-bit and 29-bit CAN messaging.  Secondly they provide capability for transmitting and receiving messages for various lower-level and higher-layer protocols. For instance, this includes ISO-11898-5, CAN 2.0, CAN-FD, ARINC-825-4, CANopen, SAE J1939, and lastly, DeviceNet4. They can operate at data rates up to 4 Mb/s and provide configurable options to support the CAN bus and ARINC-825-4 standards.

For CAN bus and ARINC-825, Sital offers intellectual property (IP) and board-level solutions with included software. In brief, these all implement Standard, Extended and Remote Frames; include an 8-bit Message_ID filter, with filtering based on the Message ID, and also the first two data bytes, including a power Monitor (listen-only) mode; 8-message Transmit and Receive FIFOs; loopback mode for self-test. Lastly, options to either enable or disable
message re-transmission.

For support of CAN-FD and ARINC-825-4. Sital implements the CAN-FD physical layer. This includes enabling different data rates for arbitration and data transfers. This along with CAN-FD’s bit timing requirements. Sital’s IP and boards also implement the CAN-FD frame structure. This includes 64-byte data fields. Specifically for the operation of the FDF, IDE, RRS, BRS and SRR bits. Lastly, delays before and after the ACK (acknowledgement) bit and either 17-bit or 21-bit CRCs.

For ARINC-825, Sital implements the ARINC-825 modified DLC (data link control) field, Identification Service. Secondly, CAN bus bandwidth management. In addition to message prioritization during arbitration, Sital’s bandwidth management includes support of both synchronous, periodic messages and asynchronous messages. Thus implementing minor and major frames; balancing bus loading. Then controlling the transmission rate of each node. And Then performing bus load calculations. Sital’s CAN bus products also provide the ARINC-825-4 Periodic Health Status Message (PHSM) as well as Management Information Base functionality.

For its CAN bus/ARINC-825 solutions, Sital offers an option for its Safe and Secure (SnS) Technology. Thus by means of enhanced physical layer monitoring, Sital’s SnS provides continuous cyber authentication for detecting “spoofing” (or impersonating) nodes on CAN or ARINC-825 buses. In addition, Sital’s SnS also provides electrical fault detection. This enables detection and location of faults such as intermittent or continuous open or short circuits in data bus and stub cabling, couplers, connectors, connected LRUs and bus terminations.

Further, for CAN bus, Sital offers denial of service (DoS) mitigation. This feature provides a low-level hardware means for preventing CAN bus nodes from transmitting continuously on a CAN bus. This guarantees that if a node on a bus is running malicious or erroneous software, that it can’t “take over” all of the bus’s bandwidth. As a result, this feature ensures that all nodes on the bus will have the opportunity to transmit.

Sital’s PhysiCAN board comes with Windows GUI software. The GUI enables users to configure the board for their specific topologies and applications and to view the occurrence of incidents of spoofing nodes and electrical faults in real time. In addition the PhysiCAN GUI  used as a development platform for embedding Sital’s CAN bus SnS IP.