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WWAN/WLAN Application Interface
Pin Name
COEX_RXD
COEX_TXD
HST_LAA_TX_
EN
HST_WL_TX_
EN
WLAN_PWR_
EN1
WLAN_PWR_
EN2
RG520N-AT_Hardware_Design
Pin No.
I/O
Description
Coexistence
65
DI
UART receive
Coexistence
67
DO
UART transmit
Notifies LAA/n79
transmission from
135
DO
SDR transceiver to
WLAN
Notifies WLAN
transmission from
138
DI
WLAN to SDR
transceiver
Controls WLAN PA
216
DO
power
Controls other
219
DO
power of WLAN
5G Module Series
In endpoint mode, it
is an output signal.
DC
Comment
Characteristics
Only for Qualcomm
platform.
Signal interface
used for
WWAN/WLAN
coexistence
mechanism.
Pin 65 can be
multiplexed into
SDX2AP_E911
function.
Pin 67 can be
multiplexed into
SDX2AP_STATUS
function.
For details, contact
Quectel Technical
Support.
This pin is used for
1.8 V
the coexistence of
n79 and Wi-Fi 5
GHz. If n79 is
needed in your
future project with
Quectel modules,
then this pin should
be reserved;
otherwise, keep it
unconnected.
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