ZHCSJ41 December 2018 SN55HVD233-SEP
PRODUCTION DATA.
A logic high on the loopback LBK pin 5 of the SN55HVD233-SEP places the bus output and bus input in a high-impedance state. The remaining circuit remains active and available for driver-to-receiver loopback, self-diagnostic node functions without disturbing the bus. For more information on the loopback mode, refer to the Application Information section.