TCS3471 Datasheet, PDF (11/22 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – COLOR LIGHT-TO-DIGITAL CONVERTER

TCS3471
COLOR LIGHT-TO-DIGITAL CONVERTER
TAOS115 − MARCH 2011
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.
ADDRESS
−−
0x00
0x01
0x03
0x04
0x05
0x06
0x07
0x0C
0x0D
0x0F
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
RESISTER NAME
COMMAND
ENABLE
ATIME
WTIME
AILTL
AILTH
AIHTL
AIHTH
PERS
CONFIG
CONTROL
ID
STATUS
CDATA
CDATAH
RDATA
RDATAH
GDATA
GDATAH
BDATA
BDATAH
Table 1. Register Address
R/W
REGISTER FUNCTION
W Specifies register address
R/W Enables states and interrupts
R/W RGBC ADC time
R/W Wait time
R/W RGBC interrupt low threshold low byte
R/W RGBC interrupt low threshold high byte
R/W RGBC interrupt high threshold low byte
R/W RGBC interrupt high threshold high byte
R/W Interrupt persistence filters
R/W Configuration
R/W Gain control register
R Device ID
R Device status
R Clear ADC low data register
R Clear ADC high data register
R Red ADC low data register
R Red ADC high data register
R Green ADC low data register
R Green ADC high data register
R Blue ADC low data register
R Blue ADC high data register
RESET VALUE
0x00
0x00
0xFF
0xFF
0x00
0x00
0x00
0x00
0x00
0x00
0x00
ID
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
The mechanics of accessing a specific register depends on the specific protocol used. See the section on I²C
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.
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