SM-B69
SM-B69 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author:A.R - Reviewed by M.B. - Copyright © 2020 SECO S.p.A.
18
2.3.2
Power Rails meanings
In all the tables contained in this manual, Power rails are named with the following meaning:
VDD_IN: Module power input voltage. +5V voltage directly coming from the card edge connector. Also named 5V_DSW.
VDD_RTC: Low current RTC circuit backup power. 3V coin cell voltage coming from the edge card for supplying the RTC clock on the I.MX 8M
+3.3V_DSW: +3.3 Always-on voltage, derived internally from 5V_DSW
+3.3V_RUN: +3.3 Switched voltage, derived internally from +3.3V_DSW
+3.3V_ALW: +3.3 Switched voltage, derived internally from +3.3V_DSW
+1.8V_ALW: +1.8 Always-on voltage, derived internally from 5V_DSW
+1.8V_RUN: +1.8 switched voltage, derived internally from +1.8V_ALW
+1.8V_DSW: +1.8 Always-on voltage, derived internally from +3.3V_DSW
