TSL2771

LIGHT-TO-DIGITAL CONVERTER

with PROXIMITY SENSING

TAOS100B − FEBRUARY 2011

24

r

r

Copyright

E 2011, TAOS Inc.

The LUMENOLOGY

r Company

www.taosinc.com

Status Register (0x13)

The Status Register provides the internal status of the device. This register is read only.

Table 14. Status Register

6

75

4

AVALID

2

31

0

STATUS

Reserved

Resv

AINT

Address

0x13

Reserved

PINT

FIELD

BIT

DESCRIPTION

Reserved

7:6

Reserved.

PINT

5

Proximity Interrupt. Indicates that the device is asserting a proximity interrupt.

AINT

4

ALS Interrupt. Indicates that the device is asserting an ALS interrupt.

Reserved

3:1

Reserved.

AVALID

0

ALS Valid. Indicates that the ALS channels have completed an integration cycle.

ADC Channel Data Registers (0x14 − 0x17)

should be used with auto increment protocol bits set in the command register. With this operation, when the

lower byte register is read, the upper eight bits are stored in a shadow register, which is read by a subsequent

read to the upper byte. The upper register will read the correct value even if additional ADC integration cycles

end between the reading of the lower and upper registers.

Table 15. ADC Channel Data Registers

REGISTER

ADDRESS

BITS

DESCRIPTION

C0DATA

0x14

7:0

ALS CH0 data low byte

C0DATAH

0x15

7:0

ALS CH0 data high byte

C1DATA

0x16

7:0

ALS CH1 data low byte

C1DATAH

0x17

7:0

ALS CH1 data high byte

Proximity Data Registers (0x18 − 0x19)

should be utilized with auto increment protocol bits set in the command register. With this operation, when the

lower byte register is read, the upper eight bits are stored into a shadow register, which is read by a subsequent

read to the upper byte. The upper register will read the correct value even if the next ADC cycle ends between

the reading of the lower and upper registers.

Table 16.

REGISTER

ADDRESS

BITS

DESCRIPTION

PDATAL

0x18

7:0

Proximity data low byte

PDATAH

0x19

7:0

Proximity data high byte