EX_ADDR_EN=7_bits_address
Master Control Register.
| START | Setting this bit to 1 will start a master transfer. |
| RESTART | Setting this bit to 1 will generate a repeated START. |
| STOP | Setting this bit to 1 will generate a STOP condition. |
| EX_ADDR_EN | Slave Extend Address Select. 0 (7_bits_address): 7-bit address. 1 (10_bits_address): 10-bit address. |