SLLSFC6D November 2021 – January 2023 ISOUSB111
PRODUCTION DATA
The ISOUSB111 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 LS/FS idle state first (J to K transition). After that, data is transferred digitally across the barrier, and reconstructed on the other side. Data transmission continues till either an End-of-Packet (EOP) or a long idle is seen. At this point, the ISOUSB111 device tri-states its LS/FS transmitters, and waits for the next transition from the LS/FS idle state.