19.1.4.1 Default Boot Sequence
When no Boot Configuration Packet is available in the OTP User area, the
ROM code uses the following settings:
- FLEXCOM3 IOSET 5 is used as a console.
- Boot from SDMMC1 IOSET1 (uses card detect pin)
If no valid code is found in the SD Card or e.MMC, the ROM code goes to the standard monitor.
See the table PIO Driven during Boot Program Execution for further details about PIO settings.