Status; Cellular/Wlan Coex Interface; Antenna Tuner Control Interface - Quectel RM502Q-GL Hardware Design

4.5.6. STATUS*

RM502Q-GL provides two status indication pins for communication with IPQ807x device. Pin 38
(SDX2AP_STATUS) outputs the status indication signal to IPQ807x device, and pin 68
(AP2SDX_STATUS) inputs the status indication signal from IPQ807x device.

4.6. Cellular/WLAN COEX Interface*

RM502Q-GL provides a cellular/WLAN COEX interface, the following table shows the pin definition of this
interface.
Table 26: Pin Definition of COEX Interface
Pin No. Pin Name
59 LAA_TX_EN*
60 WLAN_TX_EN*
62 COEX_RXD*
64 COEX_TXD*

4.7. Antenna Tuner Control Interface

The module provides ANTCTL[1:2] and RFFE pins used for antenna tuner control, which should be
routed to an appropriate antenna control circuit. More details about the interface will be added in the
future version of this document.
Table 27: Pin Definition of Antenna Tuner Control Interface
Pin No. Pin Name
56 RFFE_CLK
58 RFFE_DATA
65 RFFE_VIO_1V8
RM502Q-GL_Hardware_Design
I/O Description
Notification from SDR to WLAN while
DO
LTE transmitting
Notification from WLAN to SDR while
DI
transmitting
DI, PD LTE/WLAN coexistence receive
DO, PD LTE/WLAN coexistence transmit
I/O Description
1)
DO, PD
Used for external RFFE IC
control
1)
DO, PD
1)
PO Power supply for RFFE
5G Module Series
RM502Q-GL Hardware Design
DC Characteristic
1.8 V
1.8 V
1.8 V
1.8 V
DC Characteristic
1.8 V
1.8 V
1.8 V
Maximum output current: 50 mA
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