BootROM

• Location: 0x21000000 - 0x21020000
• Size: 128 KiB
• Can boot from: UART, SDIO, SPI Flash
• BootROM mode trigger: IO8 pulled HIGH

Size: 20 Bytes

• Byte 0 - 3 - BootROM version
• Byte 4 - Sign configuration
• Byte 5 - Encrypt configuration
• Byte 6 - 11 - Unknown
• Byte 12 - 17 - ChipID (MAC?)
• Byte 18 - 19 - Unknown