DCB500 - Transceiver for Powerline Communication Product Overview Description The DCB500 is a transceiver for multiplex communication over noisy powerline in automotive and avionics networks. The flexible protocol allows various applications such as transferring Data, Voice, Compressed video (e.g. H.264) and music (e.g. MP3) between modules sharing a common DC powerline at transfer rates up to 500Kbps. The device is based on DC-BUS technology for multiplex network communication over noisy powerline. It avoids complex cabling, saves weight, and simplifies installation. The device communicates with its Host via Serial Peripheral Interface (SPI) or UART interface providing the user the freedom to use his application-defined protocol. Features Benefits • Communication over DC power lines • Bit rates of 500Kbps and 300Kbps • Built in Modem, Error Correction and Synchronization • Multiplex CSMA/CA mechanism • UART and SPI interfaces with host • Channel frequency selection • Sleep mode for low power consumption • • • • • • - Control Panel Left Door ECU M essage A M essage B DCB500 DCB500 Eliminates complex cabling Reduces weight and installation time Robust to car battery line noises Unlimited message length Suitable for Voice and video streaming Low cost CMOS Implementation Right Door ECU M essage B DCB500 Cam era M essage A DCB500 + Battery DC BATTERY CABLES Figure 1.1 - System using DCB500 Characteristics Packet data: Modulation method: Collision resolution: Error correction codes: Power save mode: Packet size: Interface: 500Kbps DQPSK Built in Built in Built in User defined UART or SPI ©2007 YAMAR Electronics Ltd. 17 Shimon Hatarsi St. Tel Aviv, 62492 Israel Tel: +972-3-5445294 Fax: +972-3-5445279 Email: [email protected] Web: www.yamar.com DC LINE HOST Interface XO XI DC LINE Rx DC LINE Tx Passive Filter RESET SLEEP PO-DCB500 Rev1.1