TCS34711 TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS], TCS34711 Datasheet - Page 14

• Manufacturer Part Number: TCS34711
• Description: COLOR LIGHT-TO-DIGITAL CONVERTER
• Manufacturer: TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]

TCS3471
COLOR LIGHT-TO-DIGITAL CONVERTER
TAOS115 − MARCH 2011
RGBC Interrupt Threshold Registers (0x04 − 0x07)
Persistence Register (0x0C)
14
Copyright E 2011, TAOS Inc.
PERS
Reserved
APERS
The RGBC interrupt threshold registers provides the values to be used as the high and low trigger points for
the comparison function for interrupt generation. If the value generated by the clear channel crosses below the
lower threshold specified, or above the higher threshold, an interrupt is asserted on the interrupt pin.
The persistence register controls the filtering interrupt capabilities of the device. Configurable filtering is
provided to allow interrupts to be generated after each integration cycle or if the integration has produced a result
that is outside of the values specified by the threshold register for some specified amount of time.
FIELD
REGISTER
AIHTH
AILTH
AIHTL
AILTL
7
BITS
7:4
3:0
ADDRESS
0x04
0x05
0x06
0x07
Reserved
Interrupt persistence. Controls rate of interrupt to the host processor.
FIELD VALUE
6
Reserved
Table 6. RGBC Interrupt Threshold Registers
0000
0001
0010
0011
0100
0101
0110
1000
1001
1010
1011
1100
1101
0111
1110
1111
BITS
7:0
7:0
7:0
7:0
5
Table 7. Persistence Register
r
MEANING
Every
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RGBC clear channel low threshold lower byte
RGBC clear channel low threshold upper byte
RGBC clear channel high threshold lower byte
RGBC clear channel high threshold upper byte
10
15
20
25
30
35
40
45
50
55
60
1
2
3
5
4
Every RGBC cycle generates an interrupt
1 clear channel value outside of threshold range
2 clear channel consecutive values out of range
3 clear channel consecutive values out of range
5 clear channel consecutive values out of range
10 clear channel consecutive values out of range
15 clear channel consecutive values out of range
20 clear channel consecutive values out of range
25 clear channel consecutive values out of range
30 clear channel consecutive values out of range
35 clear channel consecutive values out of range
40 clear channel consecutive values out of range
45 clear channel consecutive values out of range
50 clear channel consecutive values out of range
55 clear channel consecutive values out of range
60 clear channel consecutive values out of range
3
DESCRIPTION
INTERRUPT PERSISTENCE FUNCTION
2
DESCRIPTION
APERS
r
1
The LUMENOLOGY r Company
0
Address
0x0C