Seco Q7-C25 User Manual page 36

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RSTBTN#: Reset Button Input, active low, +3.3V_RUN

to GND of this signal will reset the Qseven

BATLOW#: Battery Low Input, active low, +3.3V_ALW

battery is low, or that some battery-related event has occurred. Can be left unconnected if not used

WAKE#: Wake Input, active low +3.3V_ALW

Wake-up event has occurred, and consequently the module must turn itself on. It can be left unconnected if not used.

SUS_S3#: S3 status output, active low +3.3V_ALW electrical voltage signal. This signal must be used, on the carrier board, to shut off the power supply to all the

devices that must become inactive during S3 (Suspend to RAM) power state.

SUS_S5#: S5 status output, active low +3.3V_ALW electrical voltage signal. This signal is used, on the carrier board, to shut off the power supply to all the devices

that must become inactive only during S5 (Soft Off) power state.

SLP_BTN#: Sleep button Input, active low +3.3V_ALW electr

board, to trigger the transition of the module from Working to Sleep status, or vice versa. It can be left unconnected if not used on the carrier board.

LID_BTN#: LID button Input, active low +3.3V_ALW

board, to trigger the transition of the module from Working to Sleep status, or vice versa. It can be left unconnected if not used on the carrier board.

3.2.16

Miscellaneous, Thermal Management and Fan control signals

Here following, a list of Qseven

compliant signals that complete the features of Q7-C25 module.

SMB_CLK: SM Bus control clock line for System Management. Bidirectional signal, electrical level +3.3V_ALW (but enabled via +3.3V_RUN

pull-up resistor. It is directly managed by ST Microelectronics STM32F100R6H6 microcontroller.

SMB_DAT: SM Bus control data line for System Management. Bidirectional signal, electrical level +3.3V_ALW (but enabled via +3.3V_RUN

up resistor. It is directly managed by ST Microelectronics STM32F100R6H6 microcontroller.

SMB_ALERT#: SM Bus Alert line for System Management. Bidirectional signal, active low, electrical level +3.3V_ALW. directly managed by ST Microelectronics

STM32F100R6H6 microcontroller. Any device place on the SM Bus can drive this signal low to signal an event on the bus itself.

GP0_I2C_CLK: general purpose I2C Bus clock line. Bidirectional signal, electrical level +3.3V_RUN with a 2.2k

controller. I2C Bus is able to work in Standard mode (bitrate up to 100Kbps), Fast mode (bitrate up to 400Kbps), Fast-mode Plus (bitrate up to 1Mbps), High-speed

mode (bitrate up to 3.4Mbps).

GP0_I2C_DAT: general purpose I2C Bus data line. Bidirectional signal, electrical level +3.3V_RUN with a 2.2k

controller.

WDTRIG#: Watchdog Trigger Input. It is an active low signal, +3.3V_RUN voltage with a 10

Hardware, the internal Watchdog Timer (which is usually managed via Software using Q7-C25 dedicated API - Application Program Interface - libraries).

WDOUT: Watchdog event indicator Output. It is an active high signal, +3.3V_RUN voltage. When this signal goes high (active), it reports out to the devices on the

BOOT_ALT#: Boot Alternate Input, active low +3.3V_RUN voltage signal with 10k pull-up resistor. When this signal is driven low, then i.MX8M processors starts to

work in peripheral mode, i.e. it begins to wait for inputs from an external Host connected to the system. This is used usually when it is necessary to program the

Q7-C25

module.

d without being triggered, neither via HW nor via SW.

-up resistor. This signal can be connected to a momentary push-button: a pulse

-up resistor. This signal can be driven on the carrier board to signal that the system

-up resistor. This signal can be driven low, on the carrier board, to report that a

-up resistor. This signal can be driven, using a pushbutton on the carrier

-up resistor. This signal can be driven, using a LID Switch on the carrier

-up resistor This signal can be used to reset and restart, via

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