IGEP
TM
SMARC iMX6
Hardware Reference Manual
ISEE 2007 S.L. All rights reserved, IGEP is a registered trademark from ISEE 2007 S.L. The following is provided for informational purposes only.
NIF:ESB64377005 Document:
MAN-IGEP0046-001
/ Revision:
1.3
/ Date:
23/06/2016
14
4.2
POWER SOURCES
Supply Voltage
The power supply of the module is made with a single standard voltage of 5V, using the defined inputs (pins
P147 to P156, all the connections in this chapter are referred to the SMARC-314 connector, see Table 30 J900
SMARC-314 pinout description). This voltage can be from a minimum value of 4.75V to a maximum of 5.25V
(see resume of electrical characteristics in Chapter 7). Next figure shows a schematic example of this power
signal (page 88 of SMARC Design Guide).
Figure 6 Power Supply Input circuit
RTC Battery
The RTC Battery pin (S147) allows the connection of a battery. With this, in case of a general power fall, RTC
circuit will be powered . The user has to be careful with the selection of battery capacity: depending on the
current consumption, the activity duration will be drastically reduced.
Next figure shows RTC Battery examples (page 30 of SMARC Design Guide).
Figure 7 RTC Battery
GND Pins
All the GND pins are internally connected together, so it’s not needed to connect all of them. However, the
user has to considerer how many of them connect according the total consumption of the complete circuit
(the IGEP
TM
SMARC iMX6 and the base board developed). At the same time, to make the routing of buses
easier, the ground connection chosen will be the nearest to the function used.
