TCS3471

COLOR LIGHT-TO-DIGITAL CONVERTER

TAOS115 − MARCH 2011

11

The LUMENOLOGY

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Copyright

E 2011, TAOS Inc.

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Register Set

The TCS3471 is controlled and monitored by data registers and a command register accessed through the

serial interface. These registers provide for a variety of control functions and can be read to determine results

of the ADC conversions. The register set is summarized in Table 1.

Table 1. Register Address

ADDRESS

RESISTER NAME

R/W

REGISTER FUNCTION

RESET VALUE

−−

COMMAND

W

Specifies register address

0x00

0x00

ENABLE

R/W

Enables states and interrupts

0x00

0x01

ATIME

R/W

RGBC ADC time

0xFF

0x03

WTIME

R/W

Wait time

0xFF

0x04

AILTL

R/W

RGBC interrupt low threshold low byte

0x00

0x05

AILTH

R/W

RGBC interrupt low threshold high byte

0x00

0x06

AIHTL

R/W

RGBC interrupt high threshold low byte

0x00

0x07

AIHTH

R/W

RGBC interrupt high threshold high byte

0x00

0x0C

PERS

R/W

Interrupt persistence filters

0x00

0x0D

CONFIG

R/W

Configuration

0x00

0x0F

CONTROL

R/W

Gain control register

0x00

0x12

ID

R

Device ID

ID

0x13

STATUS

R

Device status

0x00

0x14

CDATA

R

Clear ADC low data register

0x00

0x15

CDATAH

R

Clear ADC high data register

0x00

0x16

RDATA

R

Red ADC low data register

0x00

0x17

RDATAH

R

Red ADC high data register

0x00

0x18

GDATA

R

Green ADC low data register

0x00

0x19

GDATAH

R

Green ADC high data register

0x00

0x1A

BDATA

R

Blue ADC low data register

0x00

0x1B

BDATAH

R

Blue ADC high data register

0x00

protocols on the previous pages. In general, the COMMAND register is written first to specify the specific

control/status register for the following read/write operations.