SLLA578 June   2022 TLIN1431-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Startup
    1. 1.1 Operational Voltages
    2. 1.2 Power-Up and INIT Mode
  4. 2Pin Control
    1. 2.1 Typical Application
    2. 2.2 Power-Up into Normal Mode in Pin Control
      1. 2.2.1 Restart Mode from INIT Mode in Pin Control
      2. 2.2.2 Standby Mode from Restart Mode in Pin Control
      3. 2.2.3 Normal Mode in Pin Control
    3. 2.3 Power-Up into Fast Mode in Pin Control
    4. 2.4 Sleep Mode to Normal Mode in Pin Control
    5. 2.5 Fail-Safe Mode to Normal Mode in Pin Control
  5. 3SPI Control
    1. 3.1 Typical Application
    2. 3.2 Power-Up into Normal Mode in SPI Control
      1. 3.2.1 Restart Mode from INIT Mode in SPI Control
      2. 3.2.2 Standby Mode from Restart Mode in SPI Control
      3. 3.2.3 Normal Mode in SPI Control
    3. 3.3 Power-Up into Fast Mode in SPI Control
    4. 3.4 Sleep Mode to Normal Mode in SPI Control
    5. 3.5 Fail-Safe Mode to Normal Mode in SPI Control
    6. 3.6 Configuring Watchdog through SPI
  6. 4Pin Assignments in Pin Control vs. SPI Control
  7. 5References

3.2.2 Standby Mode from Restart Mode in SPI Control

Figure 3-4 Standby Mode in SPI Control

In this mode, nRST is released and the device is able to be transitioned to different states. This also starts the watchdog functionality, which must be serviced through a watchdog trigger on WDI within tINITWD. To transition to normal mode, use the LIN_CNTRL register by setting 8’h1D[7:6] (LIN_MODE) to 10b. The device will enter normal mode and data on RXD will be valid after tMODE_CHANGE.