Quectel LTE-A Module Series - Configuration Pins

LTE-A Module Series
EM120R-GL&EM160R-GL Hardware Design
EM120R-GL&EM160R-GL_Hardware_Design 52 / 79
3.13. Configuration Pins
EM120R-GL&EM160R-GL provide four configuration pins which are defined as below.
3.13.1. EM160R-GL configuration pins
Table 25: List of EM160R-GL Configuration Pins
The following figure shows a reference circuit of these four pins.
Host EM160R-GL
CONFIG_0
CONFIG_1
CONFIG_2
CONFIG_3
GPIO
GPIO
GPIO
GPIO
21
69
75
1
VCC_IO_HOST
R1
100K
R2
100K
R3
100K
R4
100K
NM-0Ω
NM-0Ω
NM-0Ω
0Ω
Note: The voltage level VCC_IO_HOST depends on the host side, and could be a 1.8 V or 3.3 V
voltage level.
Figure 30: Recommended Circuit of EM160R-GL Configuration Pins
Pin No.
Pin Name
Power Domain
Description
21
CONFIG_0
0
NC
69
CONFIG_1
0
Connected to GND internally.
75
CONFIG_2
0
NC
1
CONFIG_3
0
NC