TCS3772

COLOR LIGHT-TO-DIGITAL CONVERTER

with PROXIMITY SENSING

TAOS145B − SEPTEMBER 2012

25

The LUMENOLOGY

r Company

r

r

Copyright

E 2012, TAOS Inc.

www.taosinc.com

Status Register (0x13)

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

Table 16. Status Register

6

75

4

AVALID

2

31

0

STATUS

Reserved

Resv

AINT

Reset

0x00

Reserved

PINT

PVALID

FIELD

BIT

DESCRIPTION

Reserved

7:6

Reserved.

PINT

5

Proximity Interrupt.

AINT

4

Clear channel Interrupt.

Reserved

3:2

Reserved.

PVALID

1

Proximity Valid. Indicates that a proximity cycle has completed since PEN was asserted.

AVALID

0

RGBC Valid. Indicates that the RGBC cycle has completed since AEN was asserted.

RGBC Channel Data Registers (0x14 − 0x1B)

Clear, red, green, and blue data is stored as 16-bit values. To ensure the data is read correctly, a two-byte read

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 additional ADC

integration cycles end between the reading of the lower and upper registers.

Table 17. ADC Channel Data Registers

REGISTER

ADDRESS

BITS

DESCRIPTION

CDATA

0x14

7:0

Clear data low byte

CDATAH

0x15

7:0

Clear data high byte

RDATA

0x16

7:0

Red data low byte

RDATAH

0x17

7:0

Red data high byte

GDATA

0x18

7:0

Green data low byte

GDATAH

0x19

7:0

Green data high byte

BDATA

0x1A

7:0

Blue data low byte

BDATAH

0x1B

7:0

Blue data high byte

Proximity Data Registers (0x1C − 0x1D)

should be used with a read word protocol bit 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 additional ADC integration cycles end

between the reading of the lower and upper registers.

Table 18.

REGISTER

ADDRESS

BITS

DESCRIPTION

PDATA

0x1C

7:0

Proximity data low byte

PDATAH

0x1D

7:0

Proximity data high byte