Service Guide
Table Of Contents
- Safety Information
- About the Document
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Overview
- 3 Operating Characteristics
- 4 Application Interfaces
- 5 Antenna Interfaces
- 6 Electrical Characteristics and Reliability
- 7 Mechanical Information and Packaging
LTE-A Module Series
EM060K-GL&EM120K-GL_Hardware_Design 43 / 78
Table 17: RF Function Status
4.4.2. W_DISABLE2#
The module provides a W_DISABLE2# pin to disable or enable the GNSS function. The W_DISABLE2#
pin is pulled up by default. Driving it low will disable the GNSS function. The combination of
W_DISABLE2# pin and AT commands can control the GNSS function.
Table 18: GNSS Function Status
A simple level shifter based on diodes is used on W_DISABLE1# pin and W_DISABLE2# pin which are
pulled up to a 1.8 V voltage in the module, as shown in the following figure. So, the control signals (GPIO)
of the host device could be at 1.8 V or 3.3 V voltage level. W_DISABLE1# and W_DISABLE2# are active
low signals, and a reference circuit is shown as below.
W_DISABLE#
Logic Level
AT Command RF Function Status Operating Modes
High Level
AT+CFUN=1 Enabled Full functionality mode
AT+CFUN=0 Disabled Minimum functionality mode
AT+CFUN=4 Disabled Airplane mode
Low Level
AT+CFUN=0
AT+CFUN=1
AT+CFUN=4
Disabled Airplane mode
W_DISABLE2# Level AT Commands GNSS Function Status
High Level AT+QGPS=1 Enabled
High Level AT+QGPSEND
Disabled
Low Level AT+QGPS=1
Low Level AT+QGPSEND