2.5.1.4.1 Default Boot Sequence

When no Boot Configuration Packet is available in the OTP User area, the ROM code uses a default boot configuration and tries to boot from the following external memories:

  • SD Card/e.MMC (SDMMC 0) - PA0 to PA5
  • SD Card/e.MMC (SDMMC 1) - PA6 to PA11
  • QSPI NOR Flash (QSPI) - PB15 to PB26
  • NAND Flash (SMC) - PD0 to PD14
  • SPI (FLEXCOM 5) - PA14 to PA17

See Table 2-26 for further details.

If no bootable file is found in any of these memories, the ROM code runs the SAM-BA Monitor.