REL 1.2
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i.MX6 Qseven PMIC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.7.14
Power Input
i.MX6 Qseven PMIC SOM works with single 5V power input (VCC) from Qseven Edge connector and generates all
other required powers internally On-SOM itself. i.MX6 Qseven PMIC SOM also uses VCC_RTC coin cell power input
from Qseven Edge connector to i.MX6 CPU’s RTC controller for real time clock (when VCC is off). i.MX6 Qseven PMIC
SOM doesn’t use Standby power supply from Qseven Edge connector.
For more details, refer Qseven Edge connector pins 193, 211 to 230 on
Note: i.MX6 Qseven PMIC SOM can also be powered by On-SOM Power In connector for SOM standalone usage. For
2.7.15
Power Control Signals
i.MX6 Qseven PMIC SOM supports two power control signals PWGIN and PWRBTN# on Qseven Edge connector.
PWGIN input from Qseven Edge connector is the active high signal which is used to enable the power of i.MX6
Qseven PMIC SOM. For more details on PWRGIN signal usage, refer section
i.MX6 Qseven PMIC SOM supports PWRBTN# input from Qseven Edge connector which is the active low signal and
connected to i.MX6 CPU’s ONOFF pin. This pin can be used to On/Off the i.MX6 CPU by connecting push button in
the carrier board. When the board power is On, a button press between 750ms to 5s will send an interrupt to core to
request software to bring down the i.MX6 safely (if software supports). Otherwise, button press greater than 5s
results in a direct hardware power down which is applicable when software is unable to power Off the device. When
the i.MX6 CPU power supply is Off, a button press greater in duration than 750ms asserts an output signal to request
power from a power IC to power up the i.MX6 CPU.
For more details, refer Qseven Edge connector pins 20 & 26 on
2.7.16
Power Management Signals
i.MX6 Qseven PMIC SOM supports different power management signals (in hardware) like RSTBTN#, BATLOW#,
WAKE#, SUS_STAT#, SUS_S5# & SLP_BTN# on Qseven Edge connector.
RSTBTN# input from Qseven Edge connector is the active low signal which is connected to i.MX6 CPU’s POR pin in
i.MX6 Qseven PMIC SOM. This pin can be used to reset the i.MX6 CPU by connecting push button in the carrier
board. Other power management signals like BATLOW#, WAKE#, SUS_STAT#, SUS_S5# & SLP_BTN# are connected to
i.MX6 CPU GPIOs (GPIO3_23, GPIO6_10, GPIO6_9, GPIO5_0 & GPIO3_31 correspondingly) and can be controlled by
software if required.
For more details, refer Qseven Edge connector pins 16,17,19,20,21 & 28 on