onsemi presented the first of its IEEE802.3cg compliant 10BASE-T1S devices.
It is a device that integrates the MAC (Media Access Controller) and the PHY (Physical layer) in a single device with a small footprint. It primarily targets the industrial market. One of the use cases is in-cabinet wiring, but Schuebel is sure that there is many more to discover once customers start playing with the device.
Features
Enhanced Noise Immunity Mode:
– ENI extends the noise immunity to values well above the IEEE T1S standard
– Allows the NCN26010 to withstand worst-case DPI and BCI immunity tests
– Significantly improves the network reach when enabled, almost 2X better than competition
– Unique to NCN26010
Lowest Line Pin Capacitance:
– Best-in-class line pin capacitance allows for the highest number of nodes per segment.
– The NCN26010 supports up to 40 nodes on a 25-meter segment, well above the IEEE minimum standard
– Lowers cabling, connector, and installation costs
Collision Detection Masking:
– Masking detected collisions allows operation in noisy conditions
– Prevents false collision detection in high-noise environments
– When used in conjunction with ENI, the NCNS26010 has unparalleled noise tolerance
PLCA Precedence Mode:
– Lower PLCA ID’s get precedence over higher ones
– Provides arbitration similar to CAN: The Coordinator (i.e., the head node) sends a new beacon once any station transmits
– Unique to NCN26010
Physical Layer collision avoidance PLCA:
– Allows higher throughput in multi-drop topologies
Two Configurable Digital Outputs that can Drive Low Current LEDs:
– Supports systems where up to two LEDs can provide status indicators
Open Alliance Compatible SPI Interface:
– Conforms to Open Alliance TC6 specs for Configuration and Data Frames to Host MCUs
MAC Address Filtering:
– By filtering frames based on the destination address, Ethernet frames not intended for a certain node are not processed by the host, thus reducing the load
– The MAC will see the frame, process the address, drop it based on the filter criteria, and the host will not need to handle it
Supports IEEE802.3 CSMA/CD Collision Detection:
– PLCA mode will default to CSMA/CD collision detection, if needed