I2C Questions

Some questions:

1. Is 0x4B the address of both write and read? from datasheet:

     I2C AW  - Target address and write condition

     I2C AR  - Target address and read condition

2. Restart input to the R_SCI_I2C  - 

R_SCI_I2C_Write(&g_i2c_driver_ctrl, (uint8_t *)txBuf, txLen, restart))

where can I find this function?  I would like to pass my g_i2c_driver_ctrl to it.

I am trying to use some HAL functionality that comes with the uC I am using , that does not have a ' restart' input.