Datasheet

DocID16892 Rev 24 11/39
M24128-BW M24128-BR M24128-BF M24128-DF Device operation
38
4 Device operation
The device supports the I
2
C protocol. This is summarized in Figure 6. Any device that sends
data on to the bus is defined to be a transmitter, and any device that reads the data to be a
receiver. The device that controls the data transfer is known as the bus master, and the
other as the slave device. A data transfer can only be initiated by the bus master, which will
also provide the serial clock for synchronization. The device is always a slave in all
communications.
Figure 6. I
2
C bus protocol
3#,
3$!
3#,
3$!
3$!
34!24
#ONDITION
3$!
)NPUT
3$!
#HANGE
!)"
34/0
#ONDITION
 
-3"
!#+
34!24
#ONDITION
3#,
 
-3" !#+
34/0
#ONDITION