Not able to write data after shifting from I2C Slave to I2C Master

Hi ,

I am using MSP430F5137. I am working on I2C Master, Slave both configuration on single chip.

Where I2C slave will talk to X-Master & I2C master talk to Y-Slave.

I am able to configure master-slave configuration separately.

But when-

I configure the 5137 as Slave, done with the slave job. Now I will configure 5137 as Master and I am trying to write some data on slave which is failing.