SNLS477B October 2014 – November 2018 DS90UB948-Q1
In the repeater application, this document refers to the DS90UB947-Q1 serializer or as the transmitter (TX), and refers to the DS90UB948-Q1 as the Receiver (RX). Figure 25 shows the maximum configuration supported for repeater implementations. Two levels of repeaters are supported with a maximum of three transmitters per receiver.
In a repeater application, the I2C interface at each TX and RX is configured to transparently pass I2C communications upstream or downstream to any I2C device within the system. This includes a mechanism for assigning alternate IDs (Slave Aliases) to downstream devices in the case of duplicate addresses.