12.4 Power-Up Sequence
The power-up sequence consists of the following steps:
- Power-on reset
- Power up AVDD, DVDD and IOVDD
- Check if LDO is being driven with an external 1.8 V, or is an output. Enable LDO if required.
- Release digital reset
- Wait until analog voltage reference is stable
- Configure clock (PLL requires < 250 µs)
- Fade-in audio ADC content