TCS3771 Datasheet, PDF (22/33 Pages) ams AG – COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING

TCS3771
COLOR LIGHT-TO-DIGITAL CONVERTER
with PROXIMITY SENSING
TAOS110A − MARCH 2011
Persistence Register (0x0C)
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. Separate
filtering is provided for proximity and the RGBC clear channel.
Table 9. Persistence Register
lid PERS
FIELD
PPERS
Technicaaml ^{scoAnGtent still va APERS}
7
BITS
7:4
3:0
6
5
4
3
2
1
0
PPERS
APERS
Address
0x0C
DESCRIPTION
Proximity interrupt persistence. Controls rate of proximity interrupt to the host processor.
FIELD VALUE MEANING
INTERRUPT PERSISTENCE FUNCTION
0000
−−−
Every proximity cycle generates an interrupt
0001
1
1 proximity value out of range
0010
2
2 consecutive proximity values out of range
...
...
...
1111
15
15 consecutive proximity values out of range
Interrupt persistence. Controls rate of interrupt to the host processor.
FIELD VALUE MEANING
INTERRUPT PERSISTENCE FUNCTION
0000
Every Every RGBC cycle generates an interrupt
0001
1
1 clear channel value outside of threshold range
0010
2
2 clear channel consecutive values out of range
0011
3
3 clear channel consecutive values out of range
0100
5
5 clear channel consecutive values out of range
0101
10
10 clear channel consecutive values out of range
0110
15
15 clear channel consecutive values out of range
0111
20
20 clear channel consecutive values out of range
1000
25
25 clear channel consecutive values out of range
1001
30
30 clear channel consecutive values out of range
1010
35
35 clear channel consecutive values out of range
1011
40
40 clear channel consecutive values out of range
1100
45
45 clear channel consecutive values out of range
1101
50
50 clear channel consecutive values out of range
1110
55
55 clear channel consecutive values out of range
1111
60
60 clear channel consecutive values out of range
The LUMENOLOGY r Company
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Copyright E 2011, TAOS Inc.
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