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TCS3404 Datasheet(PDF) 13 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

Part No. TCS3404
Description  DIGITAL COLOR SENSORS
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Maker  TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]
Homepage  http://www.taosinc.com
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TCS3404 Datasheet(HTML) 13 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

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TCS3404, TCS3414
DIGITAL COLOR SENSORS
TAOS137A − APRIL 2011
13
The LUMENOLOGY
r Company
r
r
Copyright
E 2011, TAOS Inc.
www.taosinc.com
Register Set
The TCS3404/14 is controlled and monitored by 18 user 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 2.
Table 2. Register Set
ADDRESS
REGISTER NAME
REGISTER FUNCTION
−−
COMMAND
Specifies register address
00h
CONTROL
Control of basic functions
01h
TIMING
Integration time/gain control
02h
INTERRUPT
Interrupt control
03h
INT SOURCE
Interrupt source
04h
ID
Part number/ Rev ID
07h
GAIN
ADC gain control
08h
LOW_THRESH_LOW_BYTE
Low byte of low interrupt threshold
09h
LOW_THRESH_HIGH_BYTE
High byte of low interrupt threshold
0Ah
HIGH_THRESH_LOW_BYTE
Low byte of high interrupt threshold
0Bh
HIGH_THRESH_HIGH_BYTE
High byte of high interrupt threshold
0Fh
−−
SMBus block read (10h through 17h)
10h
DATA1LOW
Low byte of ADC green channel
11h
DATA1HIGH
High byte of ADC green channel
12h
DATA2LOW
Low byte of ADC red channel
13h
DATA2HIGH
High byte of ADC red channel
14h
DATA3LOW
Low byte of ADC blue channel
15h
DATA3HIGH
High byte of ADC blue channel
16h
DATA4LOW
Low byte of ADC clear channel
17h
DATA4HIGH
High byte of ADC clear channel
The mechanics of accessing a specific register depends on the specific SMB protocol used. Refer to the section
on SMBus protocols on the previous pages. In general, the COMMAND register is written first to specify the
specific control/status register for following read/write operations.


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