• twi_data : twi_slave_driver.c
• twic_ctrla_reg : twi_example.c
• twic_ctrlb_reg : twi_example.c
• twic_data_reg : twi_example.c , twi_slave_driver.c
• twic_status_reg : twi_example.c , twi_slave_driver.c
• twiSlave : twi_example.c