I2C Read and Write Format
ISL97649B
FIGURE 17. I2C READ FORMAT
ISISLL2947260419BI2CI2CWWrirtiete
B yte 1
Start
MSB
1
6 b it Ad d res s
0
0
1
1
By te 2
Data R/W ACK
L SB
LSB
M SB
Da ta
P rog ra m A CK Sto p
LSB
1
D0
0
A
D7 D 6 D5 D4 D3 D2 D1
P
A
R /W = 0 = W rite
R/W = 1 = Read
FIGURE 18. I2C WRITE FORMAT
W he n R /W = 0
P = 0 = EE PROM Pr og ram ming
P = 1 = Reg ister Write
15
FN7927.0
December 5, 2011