SLIS128D November 2011 – April 2022 SN65HVDA100-Q1
PRODUCTION DATA
When the device encounters a wake-up event from the LIN bus or NWake pin, TXD indicates the source while the device enters and remains in standby mode (until EN is reasserted high and the device enters normal mode). In addition to the internal pullup resistor on TXD, typically an external pullup resistor (approximately 5 kΩ) is used in the system's I/O supply voltage. A high on TXD in standby mode indicates a remote wakeup through the LIN bus, and a low (strong pulldown) on the TXD pin indicates a local wakeup through the NWAKE pin.