Datasheet
Boot mode
Use the BOOT_MODE[1:0] pins to configure the SoM boot mode setting as indicated in the following tables.
The boot configuration is specified by the iMX8M SoC, so for more details, refer to the iMX8M SoC documentation.
Note: If BOOT_MODE[1:0] is "10" (internal boot), then GPIO pins SAI1_RX[7:0] and SAI1_TX[7:0] are used
to enable boot configuration overrides by latching them to the BOOT_CFG[15:0] bits in the SoC. For
details about these GPIO boot overrides, see the iMX8M SoC documentation.
Version 1.2 (August 2019)
Table 8. Boot mode pin signals
Name Type Connector Pins Voltage Description
BOOT_MODE0 Input J1312 64 3.3V SoC BOOT_MODE0 signal (can be set by switch or pin-
strap on baseboard)
BOOT_MODE1 Input J1312 62 3.3V SoC BOOT_MODE1 signal (can be set by switch or pin-
strap on baseboard)
Table 9. Boot mode pin settings
BOOT_MODE[1:0] bits Boot type
00 Boot from fuses (default behavior)
01 Serial downloader
10 Internal boot
11 Reserved
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