Specifications

Cinterion
®
EXS62-W/EXS82-W Hardware Interface Description
3.2 Power Up/Power Down Scenarios
102
t EXS62-W_EXS82-W_HID_v01.200ee 2022-09-02
Public/ Released
Page 66 of 144
3.2.2 Restart EXSx2-W
After startup EXSx2-W can be re-started as described in the following sections:
• Software controlled reset by AT+CFUN command: Starts Normal mode (see Section
3.2.2.1).
• Hardware controlled reset by EMERG_RST line: Starts Normal mode (see Section 3.2.2.2)
3.2.2.1 Restart EXSx2-W via AT+CFUN Command
To reset and restart the EXSx2-W module use the command AT+CFUN. See [1] for details.
3.2.2.2 Restart EXSx2-W Using EMERG_RST
The EMERG_RST signal is internally connected to the baseband processor. A low level phase
until V180 went low triggers the module restart process, and sets the processor and all signals
to their respective reset states. With a shorter low level phase, i.e., V180 low state not reached,
no module restart is triggered, and the module’s state remains unchanged. The reset state is
described in Section 3.2.3 as well as in the figures showing the startup behavior of an interface.
Please note that if the EMERG_RST signal is not released again as shown in Figure 36, i.e.,
changed from low to high after a restart/reset, the module will be repeatedly restarted.
Figure 36: Emergency restart behavior
T0 T1 T2 T3
BATT+
BB
VCORE
V180
EMERG_RST
Reset state
System restarted
High
High
High
High
For timing values see Table 13.