Power Tree - NXP Semiconductors i.MX 8M Nano LPDDR4 EVK User Manual

NXP Semiconductors
On the i.MX 8M Nano LPDDR4 EVK board, the default boot mode is to boot from the eMMC device. There are two additional boot
devices: one QSPI Nor Flash on the CPU board and one MicroSD connector on the base board. If you set the boot device to QSPI
or MicroSD, the board will boot from the device accordingly.
Table 2 shows the values used for boot selection.
Figure 3. Boot selection
Table 2. Boot selection
BOOT_MODE3
(SW1101 pin4)
0
0
0
0
0
0
0
1
Only SW1101[1-4] are used for boot selection. The left pins of SW1101 and SW1102 are useless for i.MX 8M Nano.
Either 0 or 1 is acceptable.

2.3 Power tree

There is a Type-C power supply that needs to be connected to the i.MX 8M Nano LPDDR4 EVK board at connector J302. The
other powers on the EVK board are generated from PMIC and discrete devices to supply the whole system.
power tree.
User's Guide
BOOT_MODE2 BOOT_MODE1
(SW1101 pin3) (SW1101 pin2)
0
0
0
0
1
1
1
0
i.MX 8M Nano LPDDR4 EVK Board Hardware User's Guide, Rev. 1, 12/2020
BOOT_MODE0
(SW1101 pin1)
0 0
0 1
1 0
1 1
0 0
1 0
1 1
0 0
NOTE
Specifications
Boot device
Boot from fuses
Serial downloader
eMMC/uSDHC3
MicroSD/uSDHC2
NAND Flash
QSPI 3B Read
QSPI Hyperflash 3.3 V
ecSPI Boot
Figure 4 shows the
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