The DCB1M is a transceiver for message communication allowing multi-master network topology. The device designed to operate over noisy power lines.
The device interfaces with UART, SPI, and I2C protocols. The entire firmware is implemented in small size ASIC. Its IP can be ported as part of a customer's design such as the Internet of Things (IoT) sub-network.
The DCB1M building blocks are divided into the following blocks:
Protocol handling block interprets the host protocol.
Transmit and Receive internal FIFOs, each has 1k bytes as a buffer between the host and the DC-BUS power line.
CODEC block encodes/decodes the message using 3 levels of data protection according to channel noise conditions.
Modem block, modulate, and demodulate messages using a phase-shift keying scheme.
CSMA/CA mechanism add Carrier sense and arbitration capabilities to the device
Sleep mechanism ensures low power operation during sleep mode. The device senses the bus for a short period to detect possible wake-up messages from other devices connected to the power line.
Multiple DC-BUS networks using single powerline example
A fabless semiconductor company since 1994. We develop and sell our unique devices for DC power line communication targeting wire saving. Customers in more than 51 countries use the devices in a wide range of applications; Automotive, Aerospace, Lighting, Battery monitoring (BMS) and more. The devices meet existing protocols such as UART, LIN, CAN, SPI, DMX512, and I2C keeping it simple to operate. Yamar engineers lead the LIN over DC powerline (DC-LIN) ISO 17987-8 standardization workgroup.
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