Table of Contents
Advertisement
6.4. Power Control
6.4.1.
Power Supply
The SMARC-sAMX8 supports a power input from 3.3 to 5.25V. The supply voltage is applied through the VCC pins
(VCC) of the module connector. Considered current rating of protective device is part of End-Equipment.
The following parameters should be delivered from the carrier board:
6.4.2.
Power Button (POWER_BTN#)
The power button (Pin P128) is available through the module connector described in the pinout list. To start the module
via Power Button the PWRBTN# signal must be at least 50 ms (50 ms ≤ t < 4 s, typical 400 ms) at low level (Power
Button Event).
Pressing the power button for at least 4 seconds will turn off power to the module
(Power Button Override).
6.4.3.
Power Bad Signal (VIN_POWER_BAD#)
The SMARC-sAMX8 provides an external input for a Carrier Board Power Bad signal (Pin S150). The implementation
of this subsystem complies with the SMARC Specification. VIN_POWER_BAD# is internally pulled up to module input
voltage and must be high level (open drain) to power on the module.
6.4.4.
Reset Button (RESET_IN#)
The reset button (Pin P127) is available through the module connector described in the pinout list. The module will stay
in reset as long as RESET_IN# is grounded.
www.kontron.com
Voltage Ripple maximum 200 mV peak to peak 0-20 MHz in 0 ms to 20 ms rise time
from input voltage <10% to nominal VCC
Max allowed inrush current: connector limit (15 W @ 3.3 V)
Kontron SMARC-sAMX8 - Rev. 1.2
// 47
Advertisement
Table of Contents
