SM-B79
SM-B79 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R - Reviewed by M.B. - Copyright © 2021 SECO S.p.A.
75
CN78 jumper must be used to select if SMARC
®
®
specifications Rel. 2.0 or Rel. 2.1
3.3.32
Power / Status LEDs
On SM-B79 carrier board there are some LEDs dedicated to notify the presence of voltage power rails:
D103: VDD_IN (ON, if present)
D104: +5V_ALW (ON, if present)
D105: +3V3_ALW (ON, if present)
D108: +12V_RUN (ON, if present)
D109: +5V_RUN (ON, if present)
D110: +3V3_RUN (ON, if present)
D107: +3V3_ALW, driven by +1V8_RUN (ON, if present)
D100: +3V3_ALW, driven by +1V8_ALW (ON, if present)
Some other LEDs are used to notify power management status:
D114: VIN_PWR_BAD# (ON, if VDD_IN power rail is good)
D101: CARRIER_PWR_ON (ON, if Power on is ok)
D102: CARRIER_STBY# (OFF, if in standby mode)
CN78 position SMARC Pinout compatibility
1-2
SMARC V2.1 specs
2-3
SMARC V2.0 specs