
LE910Cx
Hardware User Guide
1VV0301298 Rev. 1.05 - 2017-06-18
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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 1-10 pins.
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 the LE910Cx AT SW manual for command settings.
NOTE:
For keeping 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