User Guide

LM960 HW Design Guide
1VV0301485 Rev. 3 Page 47 of 74 2018-12-14
6.5.5.2. Using a GPIO Pin as Output
GPIO pins, when used as outputs, can drive 1.8V CMOS digital devices or compatible
hardware. When set as outputs, the pins have a push-pull output, and therefore the pull-
up resistor can be omitted.
GPIO Output Pin Equivalent Circuit
6.5.6. I2C – Inter-integrated circuit
The LM960 supports an I2C interface on the following pins:
Below table lists the I2C signals of LM960.
Module I2C Signal
PIN Signal I/O Function Type Comment
30 I2C_SCL O I2C Clock CMOS 1.8V
32 I2C_SDA I/O I2C Data CMOS 1.8V
The I2C interface is used for controlling peripherals inside the module (such as codec,
etc.).
Information – I2C is supported only on from Modem side as SW
emulation of I2C on GPIO lines.
Please contact us if you use it.
Information – If the I2C interface is not used, the signals can be left
floating.