LE910C1 Hardware User Guide
1VV0301298 Rev. 1.08 - 2017-11-14
Reproduction forbidden without written authorization by Telit Communications S.p.A. - All Rights Reserved
Telit Confidential Information, provided under NDA Page
79 of 119
8.5.2. I2C - Inter-integrated Circuit
The LE910C1 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.
LE910C1 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 LE910C1 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 LE910C1 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