Users Manual Part 2

Thundercomm TurboX C865 System on Module
Copyright © 2018 All Rights Reserved, Thundercomm Technology Co., Ltd.
2
CBL_PWR_N CON1 A45
pulled up internally
through a 200K
resistor to 1.8V
DI
Signal use for auto
power on when you
plug in a battery, active
low, internal pull up
Table 3.2-11 Power on interface definition
2.2.12 Reset Interface
Extended press of volume key will initiate a shutdown or reset (software selectable)
 Stage 1 reset – software-configurable bark
PMIC generates interrupt, giving the MSM device the opportunity to fix the problem or gracefully reset the
system. Example events that can cause a bark: Over temperature indicates system is getting too hot. PMIC
watchdog indicates that it has not kicked.
 Stage 2 –software-configurable bite
If reset is ignored, PMIC will force a reset event (selectable by software).
 Stage 3 –hardware mandatory bite
The user can generate a mandatory reset by a long press of PM_RESIN_N, or PHONE_ON_N, or
PM_RESIN_N + PHONE_ON_N in combination.
The standalone or combination of reset triggers can also be selected as SBL by directly writing to the
appropriate registers
Reset Pin
PIN Name Location PIN
Voltage
Type Description Notes
PM_RESIN_N CON1 A42
pulled up
internally
to 1.8V
DI
Volume down/Reset
key signal, Low active
Table 3.2-12 Reset interface definition
2.2.13 Keys Interface
This is interface dedicate for key.
KEYs PINs
PIN Name Location PIN
Voltage
Type Description Notes
PHONE_ON_N CON1 A40 P3 DI
Power on key signal, Low
active
PM_RESIN_N CON1 A42 P3 DI Volume down/Reset key