UMTS/HSPA+ Standard Module Series
UC200T-GL Mini PCIe Hardware Design
UC200T-GL_Mini_PCIe_Hardware_Design 28 / 51
Figure 10: Reference Circuit of PCM Application with Audio Codec
3.10. Control and Indication Signals
The following table shows the pin definition of control and indication signals.
Table 11: Pin Definition of Control and Indication Signals
3.10.1. RI Signal
The RI signal can be used to wake up the host. When a URC returns, there will be the following behaviors
on the RI pin after executing
AT+QCFG="risignaltype","physical"
.
Pin Name
Pin No.
I/O
Power Domain Description
RI 17
DO
3.3V
Output
signal used to wake up the host.
DTR 31
DI
3.3V
Sleep mode control.
DCD
33
DO
3.3V
Data carrier detection
W_DISABLE#
20
DI 3.3V
Airplane mode control.
Pulled up by default.
Active low.
PERST#
22
DI 3.3V
Fundamental reset signal.
Active low.
LED_WWAN#
42
OC
LED signal for indicating the network
status of the module.
WAKE# 1
OC
Output signal used to wake up the host.
