Telit Wireless Solutions ME910X1 User Manual

ME910C1 mPCIe HW Design Guide
1VV0301642 Rev. 2 Page 29 of 56 2022-01-14
Not Subject to NDA
Control Signals
Pin
Signal
I/O
Function
Type
1
WAKE_N O Open Drain Output Signal
Wake Up signal to the host
3V3_AUX
20
W_DISABLE_N
I
Active Low Input Signal Shutdown
Wireless disabling (Airplane mode)
3V3_AUX
22
PERST_N I Active Low Input Signal
Shutdown
3V3_AUX
42
LED_WWAN_N O Open Drain Output Signal
LED driving, for module’s status indication
3V3_AUX
Table 15 Control signals
Parameters
Min
Max
Input High Voltage
2.0 3V3_AUX
Input Low Voltage
-0.5V 0.8V
Output High Voltage
3V3_AUX -0.5V
3V3_AUX
Output Low Voltage
3V3_AUX -0.5V
3V3_AUX
Table 16 Control signal operating levels
6.5.1. W_DISABLE_N and PERST_N
W_DISABLE_N and PERST_N are both used for unconditionally shutdown the mPCIe.
Whenever one of these signals is pulled low, the module shutdowns. After releasing both
signals the module restarts. The module has already an internal Power On Reset control
and do not need other external componets.
Note:
Do not use W_DISABLE_N and PERST_N to power cycle without
first preparing the module to shutdown.
Read more at chapter §6.4 Power OFF Procedure.
6.5.2. LED_WWAN_N
LED_WWAN_N is driven by the module according the PCI Express Mini Card
Electromechanical Specification Revision 2.1. If desired, LED behavior can be configured
by adjusting software settings [2][6]. The LED circuit driver is in an Open Drain
configuration. LED can be directly connected to LED_WWAN_N through a PU series
resistor to 3V3_AUX.

Telit Wireless Solutions ME910X1 Specifications

General

Brand	Telit Wireless Solutions
Model	ME910X1
Category	PCI Card
Language	English