TCS3404 TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS], TCS3404 Datasheet - Page 13

• Manufacturer Part Number: TCS3404
• Description: DIGITAL COLOR SENSORS
• Manufacturer: TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]

Register Set
The LUMENOLOGY r Company
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.
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.
ADDRESS
00h
01h
02h
03h
04h
07h
08h
09h
0Ah
0Bh
0Fh
10h
12h
13h
14h
15h
16h
17h
11h
−−
HIGH_THRESH_HIGH_BYTE
LOW_THRESH_HIGH_BYTE
HIGH_THRESH_LOW_BYTE
LOW_THRESH_LOW_BYTE
REGISTER NAME
INT SOURCE
INTERRUPT
DATA1HIGH
DATA2HIGH
DATA3HIGH
DATA4HIGH
DATA1LOW
DATA2LOW
DATA3LOW
DATA4LOW
COMMAND
CONTROL
TIMING
GAIN
−−
ID
r
Table 2. Register Set
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Specifies register address
Control of basic functions
Integration time/gain control
Interrupt control
Interrupt source
Part number/ Rev ID
ADC gain control
Low byte of low interrupt threshold
High byte of low interrupt threshold
Low byte of high interrupt threshold
High byte of high interrupt threshold
SMBus block read (10h through 17h)
Low byte of ADC green channel
High byte of ADC green channel
Low byte of ADC red channel
High byte of ADC red channel
Low byte of ADC blue channel
High byte of ADC blue channel
Low byte of ADC clear channel
High byte of ADC clear channel
REGISTER FUNCTION
r
DIGITAL COLOR SENSORS
TCS3404, TCS3414
Copyright E 2011, TAOS Inc.
TAOS137A − APRIL 2011
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