User's Guide

LE910Cx HW User Guide
Doc#: 1VV0301298
Rev. 13.0 Page 75 of 124 2019-07-15
8.5.2. I2C - Inter-integrated Circuit
The LE910Cx supports an I2C interface on the following pins:
• B11 - I2C_SCL
• B10 - I2C_SDA
The I2C can also be used externally by the end customer application.
In addition, SW emulated I2C functionality can be used on GPIO pins 1-10. Any GPIO
(among GPIO 1-10) can be configured as SCL or SDA.
LE910Cx supports I2C Master Mode only.
NOTE:
SW emulated I2C on GPIO lines is supported only from the modem side. For
more information, refer to Ref 1: LE920x4/LE910Cx AT Command User
Guide for command settings.
NOTE:
To keep backward compatibility with previous LE910 products, it is
recommended to keep using the SW emulated I2C available on GPIO’s 1-10.
8.5.3. SD/MMC Card Interface
The LE910Cx provides an SD port supporting the SD3.0 specification, which can be used
to support standard SD/MMC memory cards with the following features:
• Interface with SD/MMC memory cards up to 2 TB
• Max clock @ 2.95V - 50 MHz SDR
• Max Data: 25 MB/s
• SD standard: HS-SDR25 at 2.95V
• Max clock @ 1.8V - 200 MHz SDR
• Max Data: 100 MB/s
• SD standard: UHS-SDR104 at 1.8 V
• Max clock @ 1.8V - 50 MHz DDR
• Max Data: 50 MB/s
• SD standard: UHS-DDR50 at 1.8 V