Boot Options - Avnet SMARC MSC SM2S-IMX8MINI User Manual

4.15 Boot Options

Pin
Signal Signal Level
Type
BOOT_SEL0# I OD 1.8V CMOS
BOOT_SEL1# I OD 1.8V CMOS
BOOT_SEL2# I OD 1.8V CMOS
FORCE_RECOV# I OD 1.8V CMOS
TEST# I OD 1.8V CMOS
If the SMARC module is powered up with VIN_PWR_BAD# left floating and RESET_IN# left floating, the module boots from selected boot device. The
boot process consists of two parts:
•
Primary boot Loader (includes Uboot)
•
Operating System boot
MSC SM2S-IMX8MINI
User Manual
Table 20: Boot Options Control Signal Description
Pin on Pin name on Power
i.MX8M Mini i.MX8M Mini Tolerance
AF23 SAI1_TXD7 1.8V
AG23 SAI1_TXD6 1.8V
AF22 SAI1_TXD5 1.8V
n.a. n.a. 1.8V
n.a. n.a. 1.8V
PU/PD Description
PU 10k 1.8V Input straps determine the module boot device.
Pulled up on Module. Driven by OD part on
Carrier.
(CPU GPIO4_IO19)
PU 10k 1.8V Input straps determine the module boot device.
Pulled up on Module. Driven by OD part on
Carrier.
(CPU GPIO4_IO18)
PU 10k 1.8V Input straps determine the module boot device.
Pulled up on Module. Driven by OD part on
Carrier.
(CPU GPIO4_IO17)
PU 10k 1.8V Pulled up on Module. Driven by OD part on
Carrier.
PU 10k 1.8V Active low signal for test mode activation.
Pulled up on Module. Driven by OD part on
Carrier.
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