JAJSU29 March 2024 ISOUSB211-Q1
ADVANCE INFORMATION
The ISOUSB211-Q1 device monitors the state of the bus on both upstream and downstream sides. The direction of communication is set by which side transitions from the HS idle state first. Transition from HS idle state to valid HS data is detected by the HS Squelch Detector. After that, data is transferred digitally across the barrier, and reconstructed on the other side. Data transmission continues till the bus returns to HS idle state, also indicated by the HS Squelch Detector. At this point, the ISOUSB211-Q1 device tri-states it's HS transmitters, and waits for the next transition from the HS idle state.