The TCAN1044A(V)-Q1 has two main operating modes; normal mode and standby mode. Operating mode selection is made by applying a high or low level to the STB pin.
|STB||Device Mode||Driver||Receiver||RXD Pin|
|High||Low current standby mode with bus wake-up||Disabled||Low-power receiver and bus monitor enable||High (recessive) until valid WUP is received|
See Section 18.104.22.168
|Low||Normal Mode||Enabled||Enabled||Mirrors bus state|