SMARC 2.0 Carrier
Users Guide
Document: CTIM-00154
Revision: 0.04
Page 17 of 22
Date: 2021-06-18
Carrier Control DIP Switch
Function
Description
Location S1
Modes
Pin Description
Function
ON
OFF
1 Mini-PCIe/mSATA select mSATA
Mini-PCIe
2 CARRIER_PWR_ON
Always-ON
Module Controlled
3 BOOT_SEL0#
GND
OPEN
4 BOOT_SEL1#
GND
OPEN
5 BOOT_SEL2#
GND
OPEN
6 USB_OTG_ID
1
GND
OPEN
1
Functionality and support depend on the module vendor.
USB0 is the top of the P13 connector
HDMI0 DDC Level Translation Select Jumper
Some SMARC module manufacturers do not use 1.8V signal levels for the HDMI DDC interface, for the
best and most reliable performance it is required the correct voltage level is used.
Note that prolonged use at the incorrect voltage level may cause damage. If you are unsure what logic
level your SMARC module uses please contact the manufacturer or [email protected].
Customers using the Congatec conga-SA5 will need to set this jumper to 3.3V (position 1-2).
Function
Description
Location J1
Modes Position
Description
1-2
3.3V to 5V DDC
2-3 (Default) 1.8V to 5V DDC
