
Thundercomm
TurboX D845 System on Module
Copyright © 2018 All Rights Reserved , Thundercomm Technology Co., Ltd.
26
will power on automatically.
Figure 3.2- 1 Power on signal
Power on Interface
PIN Name
Location
PIN
Voltage
Type
Description
Notes
CBL_PWR_N
CON2401
133
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
3.2.12Reset 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