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<section begin="History" />{| style="border-collapse:collapse; "! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History|- ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Issue Date! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Notes|-| style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |{{InfoBoxTopoldid|5204|2016/07/21}}| style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |New documentation layout|-| style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |{{AppliesToAXELULiteoldid|7028|2017/08/04}}{{InfoBoxBottom}| style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |Add PMIC_PWRON information|-! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#ededed; padding:5px; color:#000000" |2020/10/15! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#ededed; padding:5px; color:#000000" |Minor changes|}<section end="History" />__FORCETOC__<section begin="Body" />
== Reset scheme and control signals ==
Reset scheme is strictly related to power supply unit. As such, reading of [[Power (AXEL ULite)|this page]] is strongly recommended.
The following picture shows the simplified block diagram of reset scheme and voltage monitoring.
This technique is supported by [[AXEL ULite and SBC Lynx Embedded Linux Kit (XUELK)|AXEL ULite Embedded LinuxKit]].
==== Forcing a software reset using an external signal ==== As described before, GPIO1_IO08 is used by internal watchdog for triggering a software reset using [[Pinout_(AXEL_ULite)#PMIC_PWRON|PMIC_PWRON]]. The same input signal, can be used with an external push-button for triggering a software reset too. [[Pinout_(AXEL_ULite)#PMIC_PWRON|PMIC_PWRON]] has an internal pull-up (see [[Reset_scheme_(AXEL_ULite)#Reset_scheme_and_control_signals|Reset scheme]]) and must be driven with an open-drain signal ===References===
{{reflist}}
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