9

Quick Start Guide i.MX 91 EVK

Additional information

Table 4 — Boot device settings

BOOT MODE

SW1301-4

SW1301-3

SW1301-2

SW1301-1

From internal fuses

0

0

0

1

Serial downloader

0

0

1

1

USDHC1 8-bit eMMC 5.1

0

0

0

0

USDHC2 4-bit SD3.0

0

0

1

0

FlexSPI serial NOR

0

1

0

1

FlexSPI serial NAND 2K page

0

1

1

1

Reserved

0

1

0

0

Reserved

0

1

1

0

Boot switches

SW1301[4-1] is the boot configuration switch, the default boot device is eMMC/uSDHC1,

as shown in Table 4. If you want to try other boot devices, you need to change the boot

switches to corresponding values as listed in Table 4.

Note: 1 = ON 0 = OFF