Ant Tunable Interface; Configuration Interface - Fibocom L850-GL Series Hardware Manual

3.9 ANT Tunable Interface

The module supports ANT Tunable interfaces with two different control modes, i.e. MIPI interface and 3bit
GPO interface. Through cooperating with external antenna adapter switch via ANT Tunable, it can flexibly
configure the bands of LTE antenna to improve the antenna's working efficiency and save space for the
antenna.
Pin Pin Name
56 RFFE_SCLK
58 RFFE_SDATA
59 ANTCTL0
61 ANTCTL1
63 ANTCTL2
Note：
The MIPI signal is limited to unidirectional function only.

3.10 Configuration Interface

The L850 module provides four pins to define WWAN-PCIe, USB3.1 type M.2 module:
Pin Pin Name
1 CONFIG_3
21 CONFIG_0
69 CONFIG_1
75 CONFIG_2
The M.2 module configuration is shown in the following table:
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FIBOCOM L850-GL Series Hardware Guide
I/O Pin Description
Tunable ANT control, MIPI Interface,
O
RFFE clock
Tunable ANT control, MIPI Interface,
O
RFFE data
Tunable ANT control, GPO interface,
O
bit0
Tunable ANT control, GPO interface,
O
bit1
Tunable ANT control, GPO interface,
O
bit2
I/O Reset Value
-
O
L
O
L
O
L
O
Pin Description
NC
Internally connected to GND
Internally connected to GND
Internally connected to GND
Type
1.8V
1.8V
1.8V
1.8V
1.8V
Type
-
-
-
-
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