ISL29003_07 Datasheet, PDF (4/15 Pages) Intersil Corporation – Light-to-Digital Output Sensor with High Sensitivity, Gain Selection, Interrupt Function and I2C Interface

ISL29003
I²C DATA
Start
DEVICE ADDRESS
W A REGISTER ADDRESS
A
STOP
START
DEVICE ADDRESS
A
DATA BYTE0
A STOP
I²C SDA
In
A6 A5 A4 A3 A2 A1 A0 W A R7 R6 R5 R4 R3 R2 R1 R0 A
A6 A5 A4 A3 A2 A1 A0 W A
SDA DRIVEN BY ISL29003
NAK
I²C SDA
Out
SDA DRIVEN BY MASTER
A
SDA DRIVEN BY MASTER
A
SDA DRIVEN BY MASTER
A D7 D6 D5 D4 D3 D2 D1 D0 A
I²C CLK
123456789123456789
123456789123456789
FIGURE 1. I²C READ TIMING DIAGRAM SAMPLE
I²C DATA
I²C SDA In
Start
DEVICE ADDRESS W A REGISTER ADDRESS
A
FUNCTIONS
A STOP
A6 A5 A4 A3 A2 A1 A0 W A R7 R6 R5 R4 R3 R2 R1 R0 A B7 B6 B5 B4 B3 B2 B1 B0 A
I²C SDA Out
SDA DRIVEN BY MASTER
A
SDA DRIVEN BY MASTER
A
SDA DRIVEN BY MASTER
A
I²C CLK In
123456789123456789123456789
FIGURE 2. I²C WRITE TIMING DIAGRAM SAMPLE
I²C DA TA
I²C SDA In
S t art
DEVICE ADDRESS
W A REGISTER ADDRESS
A Stop
A 6 A 5 A 4 A 3 A 2 A 1 A 0 W A R7 R6 R5 R4 R3 R2 R1 R0 A
I²C SDA Out
SDA DRIV EN BY MA STER
A
SDA DRIV EN BY MA STER
A
I²C CLK In
123456789123456789
FIGURE 3. I²C sync_iic TIMING DIAGRAM SAMPLE
4
FN7464.3
October 8, 2007