6

FN6166.7

November 17, 2011

TABLE 1. COMMAND REGISTERS AND FUNCTIONS

COMMAND

FUNCTION

8CH

ADC is powered-down.

0CH

ADC is reset.

00H

100ms per integration.

04H

100ms per integration.

08H

integration.

30H

30H command sent to the device ends one integration period and begins another.

34H

34H command sent to the device ends one integration period and begins another.

38H

sent to the device ends one integration period and begins another.

1xxx_xxxxB

FIGURE 11A.

FIGURE 11B.

FIGURE 11. READ/WRITE TIMING DIAGRAM SAMPLES

START

W

A

A6 A5 A4 A3 A2 A1 A0 W

A R7 R6 R5 R4 R3R2 R1R0

A

A

15

3

STOP

SDA DRIVEN BY MASTER

POWER DOWN CMD 8C(HEX)

SDA DRIVEN BY MASTER

DEVICE ADDRESS 44(HEX)

A

2

4

6

7

8

9

12

34

5

6

7

8

9

A

A6 A5 A4 A3 A2 A1 A0 R

A

A

A

A D7 D6 D5 D4 D3 D2 D1 D0 A D7 D6 D5 D4 D3 D2 D1 D0 A

MSB OF SENSOR READING

STOP

LSB OF SENSOR READING

SDA DRIVEN BY MASTER

SDA DRIVEN BY ISL29001

SDA DRIVEN BY ISL29001

START

DEVICE ADDRESS 44(HEX)

R/W AA

15

3

2

4

6

7

8

9

1

2

3

4

5

67

89

12

3

4

5

6

7

8

9

ISL29001