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MBa53 DIP switch settings
Boot Device Selection (S2 & S3)
To select the desired boot medium set the DIP switches S2 and S3 accordingly.
The following boot modes of the i.MX53 can be selected by the DIP switches S2 and S3 on the MBa53.
SD card
DIP | S2-1 | S2-2 | S2-3 | S2-4 | S2-5 | S2-6 | S2-7 | S2-8 | S3-1 | S3-2 | S3-3 | S3-4 | S3-5 | S3-6 | S3-7 | S3-8 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ON | • | • | • | |||||||||||||||
OFF | • | • | • | • | • | • | • | • | • | • | • | • | • |
On-board eMMC
DIP | S2-1 | S2-2 | S2-3 | S2-4 | S2-5 | S2-6 | S2-7 | S2-8 | S3-1 | S3-2 | S3-3 | S3-4 | S3-5 | S3-6 | S3-7 | S3-8 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ON | • | • | • | • | ||||||||||||||
OFF | • | • | • | • | • | • | • | • | • | • | • | • |
Configuration DIP swich S1
BOOT_MODE | S1-1 | S1-2 |
---|---|---|
Boot from eFuses | 1 | 0 |
Serial Downloader | 1 | 1 |
Internal Boot | 0 | 0 |
Configuration DIP switch S2
DIP | OFF | ON |
---|---|---|
S2-1 | ARM Frequency 800 MHz | ARM Frequency 400 MHz |
S2-2 | MMU/Cache is disabled by ROM during the boot | MMU/Cache is enabled by ROM during the boot |
S2-3 | 200 MHz AXI / 400 MHz DDR | 166 MHz AXI / 333 MHz DDR |
S2-4 | 19,2, 24, 26, 27 MHz Auto Detection | OSC Frequency 24 MHz |
CAN configuration (S10)
DIP switch S1 is used to configure the CAN interfaces CAN1 and CAN2.
Termination
DIP | OFF (default) | ON |
---|---|---|
S10-1 | CAN1 not terminated | CAN1 terminated (120Ω) |
S10-2 | CAN2 not terminated | CAN2 terminated (120Ω) |