User's Manual
Table Of Contents
- Copyright
- Attention
- Trademark
- Versions
- Applicable Model List
- Foreword
- Product Overview
- Structure
- Hardware Introduction
- Hardware Interface
- Electrical and Environmental Characteristic
- RF Interface
L811-EA Module Hardware User Manual Page
39
of
43
Pin#
Name
I/O
Description
M11
I2C_DATA
I/O
I2C data signal,1.8V signal level
M12
I2C_SCL
O
I2C clock signal, 1.8V signal level
The signal connection of L811-EA I2C master and external I2C slave ( such as an audio codec）as shown
in the following tables:
L811-EA
Signal Direction
Audio Codec I2C Port
I2C_SDA
I2C_SDA
I2C_SCL
I2C_SCL
5.10 Clock Interface
L811-EA module supports one 26MHz clock output and one 32KHz clock output.
Pin#
Pin Name
I/O
Description
A3
FSYS2_26M
O
26MHz clock output, 1.8V level. (It is recommended to be
used for external GPS, and it can also be used for the main
clock of the audio codec)
A8
CLK32K
O
32K clock output, 1.8V level.
5.11 Other Interfaces
The module does not support the following ports yet: HSIC、ANT Tunable、GPIO.