LP-CC2652RB: Using CC2652R launchpad as I2C slave

Hi,

We want to communicate our CC2652R with another MCU using I2C(we are not able to use SPI for hardware reasons). But the problem is, the other MCU has to be I2C master. We checked out the drivers and saw this note in I2C.h file. 

* The I2C driver is designed to operate as an I2C master and will not
* function as an I2C slave. Multi-master arbitration is not supported;
* therefore, this driver assumes it is the only I2C master on the bus.
* This I2C driver's API set provides the ability to transmit and receive
* data over an I2C bus between the I2C master and I2C slave(s). The
* application is responsible for manipulating and interpreting the data.

Despite this information, datasheet says it can be used as slave.

For such case, is there any possibility to configure our CC2652R as I2C slave and communicate with another MCU? 

Regards, 

Metehan.