NXP Semiconductors i.MX 8M Plus LPDDR4 EVK, Hardware User'S Manual, Page: 8 / 20

Table 2. Boot mode settings (continued)
SW4-1 SW4-2 SW4-3 SW4-4
Boot mode
BOOT_MODE3 BOOT_MODE2 BOOT_MODE1 BOOT_MODE0
0 0 1 1 USDHC2 (SD boot only, SD2)
0 1 0 0 NAND 8-bit single device 256 page
0 1 0 1 NAND 8-bit single device 512 page
0 1 1 0 QSPI 3B Read
0 1 1 1 QSPI Hyperflash 3.3 V
1 0 0 0 ecSPI Boot
On the i.MX 8M Plus LPDDR4 EVK board, the default boot mode is from eMMC device. There are another two boot devices, one
QSPI Nor Flash on CPU board, and one MicroSD connector on the Base Board. Set SW4 as 0010 to choose uSDHC3 (eMMC)
as boot device, set 0011 to choose uSDHC2 (SD), and set 0110 to choose QSPI Nor. Set 0001 to enter USB Serial Download.
NAND boot is not supported on the i.MX 8M Plus LPDDR4 EVK board, but it is supported on the i.MX 8M Plus DDR4 EVK board.
For more information about the boot module, such as the meaning of every bit of the Boot Switch, see the i.MX 8M
Plus Reference Manual on
i.MX8MPLUS .
NOTE
Figure 5 shows the connection of SW4 and i.MX 8M Plus boot mode signals.
Figure 5. Boot configuration schematic
NXP Semiconductors
Specifications
i.MX 8M Plus LPDDR4 EVK Board Hardware User's Guide, Rev. 0, March 9, 2021
User's Guide 8 / 20