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FIBOCOM L860-GL Series Hardware Guide
Page 44 of 60
3.9
Configuration Interface
The L860 module provides four pins for the configuration as the WWAN-PCIe, type M.2 module:
Pin
Pin Name
I/O
Reset Value
Pin Description
Type
1
CONFIG_3
O
-
NC
-
21
CONFIG_0
O
-
NC
-
69
CONFIG_1
O
L
Internally connected to GND
-
75
CONFIG_2
O
-
NC
-
The M.2 module configuration is shown in the following table:
Config_0
(pin21)
Config_1
(pin69)
Config_2
(pin75)
Config_3
(pin1)
Module Type and
Main Host Interface
Port Configuration
NC
GND
NC
NC
WWAN - PCIe Gen2
Vendor defined
Please refer to PCI Express M.2 Specification Rev1.2” for more details.
3.10
I2C Interface
The L860 module support I2C interface.
I2C Pins
Pin Pin Name
I/O
Reset Value
Description
Type
40
I2C_SCL
I
PU
Master I2C1 CLK
1.8V
42
I2C_SDA
I/O
PU
Master I2C1 DATA
1.8V
44
I2C_IRQ#
O
PD
I2C1 INT, Wake up I2C HOST
1.8V
Note: L860 works as a slave device.
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