Q7-A29
Q7-A29 - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B. - Reviewed by G.G. Copyright © 2016 SECO S.r.l.
16
2.3
Electrical Specifications
According to Qseven
®
specifications, Q7-A29 board needs to be supplied only with an ex5V
DC
power supply.
5 Volts standby voltage needs to be supplied for working in ATX mode.
For Real Time Clock working and CMOS memory data retention, it is also needed a backup battery voltage. All these voltages are supplied directly through card
edge fingers (see connector
’
s pinout).
All remaining voltages needed for board
’
s working are generated internally from +5V_S power rail.
2.3.1
Power Rails meanings
In all the tables contained in this manual, Power rails are named with the following meaning:
_S: Switched voltages, i.e. power rails that are active only when the board is in ACPI
’
s S0 (Working) state. Examples: +3.3V_S, +5V_S.
_A: Always-on voltages, i.e. power rails that are active both in ACPI
’
s S0 (Working), S3 (Standby) and S5 (Soft Off) state. Examples: +5V_A, +3.3V_A.
_U: unswitched ACPI S3 voltages, i.e. power rails that are active both in ACPI
’
s S0 (Working) and S3 (Standby) state. Examples: +1.5V_U
2.3.2
Power Consumption
TBM
