Restart

Hi, Dialog,
I don't find a sample to use the Restart signal in demo project.
By referencing the Html help file, I found there is a function called 'hw_i2c_set_restart_enabled '. Is this the only one key step for generate Restart signal?
Will the hardware generate a Restart signal when user operate I2C in sequence of 'write - read' action? like this:
开始device_addr reg_a (w)ddr Restart device_addr(r) A data A data ...Stop