Address write: 50
Data write: 78
Data write: 21
Address read: 50
Data read: 00
Address write: 50
Data write: F8
Data write: 21
Address read: 50
Data read: 00
Address write: 50
Data write: 78
Data write: 21
Address read: 50
Data read: 00
Address write: 50
Data write: F8
Data write: 21
Address read: 50
Data read: 00
