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The following page content corresponds to the products formerly marketed by NEC Electronics
Wired Connectivity Solutions
NEC Electronics America, Inc is a leading provider of high-speed interface/connectivity technologies for industrial, medical, lighting, Smart Grid, automotive, PC, server, storage, networking, and communication applications.
NEC Electronics is a key member of working groups responsible for defining and implementing standards for these interface technologies. NEC Electronics is a core member of USB Implementers Forum Group and have representative from NEC Electronics America as one of USB-IF Board of Directors. NEC Electronics was first to introduce USB 3.0 host controller, USB 2.0 host controller, device controller, and physical layer (PHY) devices.
NEC Electronics offers a broad portfolio of interface/connectivity technologies (USB 3.0, USB 2.0, Ethernet, CAN bus, LIN bus, Power Line Communication, PCI Express®, Serial ATA, SerDes) in the form of discrete, stand-alone controllers, microcontrollers, processors, and ASIC intellectual property.
NEC Electronics is a key member of working groups responsible for defining and implementing standards for these interface technologies. NEC Electronics is a core member of USB Implementers Forum Group and have representative from NEC Electronics America as one of USB-IF Board of Directors. NEC Electronics was first to introduce USB 3.0 host controller, USB 2.0 host controller, device controller, and physical layer (PHY) devices.
NEC Electronics offers a broad portfolio of interface/connectivity technologies (USB 3.0, USB 2.0, Ethernet, CAN bus, LIN bus, Power Line Communication, PCI Express®, Serial ATA, SerDes) in the form of discrete, stand-alone controllers, microcontrollers, processors, and ASIC intellectual property.
CAN Connectivity Solution
NEC Electronics America offers CAN connectivity in the form of microcontrollers.
What is CAN?
Controller area network (CAN) is a multi-master broadcast serial bus standard designed to allow microcontrollers and devices to communicate with each other without host computer.
CAN is a high-integrity serial data communication bus designed for real-time data transfer requirements with data rates up to 1Mbits/ second baud rate. CAN assure the integrity of data transfer through fault confinement mechanism in which faulty CAN node can be removed/ shut-down from the network based on the severity of the errors detected. Fault confinement assure that the faulty CAN node will not monopolize the CAN bus load and bring down the CAN network.
CAN was designed originally for automotive applications and is expanding into industrial, medical, and factory automation applications, in which real-time data transfer and integrity of data transfer are required for all of these safety-critical applications.
CAN uses Carrier Sense Multiple Access and Collision Detection (CSMA/CD) media access control (MAC) protocol. CAN is a message-based protocol (not an address-based protocol), which means that all CAN nodes receive every message transmitted on the bus and acknowledge the message.
CAN protocol resides in the physical layer (layer 1) and data link layer (layer 2) of networking Open Systems Interconnection Reference Model (OSI Model). Some CAN protocols, which include the Media Dependent Interface definition for the two OSI lower layers, are defined by International Standards Organization (ISO) and Society of Automotive Engineers (SAE). ISO11898 is a standard for high-speed applications up to 1Mbits/ second, ISO11519 is a standard for low-speed applications up to 125Kbits/ second.
CAN is a high-integrity serial data communication bus designed for real-time data transfer requirements with data rates up to 1Mbits/ second baud rate. CAN assure the integrity of data transfer through fault confinement mechanism in which faulty CAN node can be removed/ shut-down from the network based on the severity of the errors detected. Fault confinement assure that the faulty CAN node will not monopolize the CAN bus load and bring down the CAN network.
CAN was designed originally for automotive applications and is expanding into industrial, medical, and factory automation applications, in which real-time data transfer and integrity of data transfer are required for all of these safety-critical applications.
CAN uses Carrier Sense Multiple Access and Collision Detection (CSMA/CD) media access control (MAC) protocol. CAN is a message-based protocol (not an address-based protocol), which means that all CAN nodes receive every message transmitted on the bus and acknowledge the message.
CAN protocol resides in the physical layer (layer 1) and data link layer (layer 2) of networking Open Systems Interconnection Reference Model (OSI Model). Some CAN protocols, which include the Media Dependent Interface definition for the two OSI lower layers, are defined by International Standards Organization (ISO) and Society of Automotive Engineers (SAE). ISO11898 is a standard for high-speed applications up to 1Mbits/ second, ISO11519 is a standard for low-speed applications up to 125Kbits/ second.
CAN Communication Application
CAN is widely used in automotive vehicle and expanding into industrial, medical, and factory automation applications, in which real-time data transfer and integrity of data transfer are required for all of these safety-critical applications.
- Automotive Vehicle: CAN provides the inter-network communication between electronic control units (such as microcontroller or sensors used for transmission, airbags, anti-lock, braking, cruise control, audio systems, windows, doors, mirror adjustments, engine control unit) within a vehicle.
More information about where NEC Electronics devices fit into different automotive vehicle application, please refer to NEC Electronics America Automotive Applications website
- Factory and Industrial Automation (FA/IA): CAN facilitate the inter-network communication between electronics control units (such as microcontroller or sensors for assembly line, sensor modules, access control system, programmable logic controller, test and measurement equipments)
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