TSL4531

DIGITAL AMBIENT LIGHT SENSOR

TAOS112 − OCTOBER 2011

9

The LUMENOLOGY

r Company

r

r

Copyright

E 2011, TAOS Inc.

www.taosinc.com

Control Register (0x00)

The CONTROL register is used to power the device on/off and single cycle.

Table 3. Control Register

6

75

4

2

31

0

CONTROL

Reset

0x00

MODE

Reserved

FIELD

BITS

DESCRIPTION

Reserved

7:2

Reserved. Write as 0.

MODE

1:0

Operating Mode. This two-bit field controls the mode of the device:

FIELD VALUE

FUNCTION

00

Power Down

01

Reserved

10

Run a single ADC cycle and return to PowerDown

11

Normal Operation

Configuration Register (0x01)

The configuration register controls the integration timer and power saving enabling through two user fields.

Table 4. Configuration Register

6

75

4

2

31

0

CONFIG

Reserved

Reset

0x00

TCNTRL

PSAVESKIP Reserved

FIELD

BITS

DESCRIPTION

Reserved

7:4

Reserved. Write as 0.

PSAVESKIP

3

PowerSave Mode. When asserted, the power save states are skipped following a light integration cycle

for shorter sampling rates (Note A).

Reserved

2

Reserved. Write as 0.

TCNTRL

1:0

Timer Control sets the integration time.

FIELD VALUE

MULTIPLIER

PURPOSE

00

1

×

01

2

×

10

4

×

11

−−

Reserved