TMD4903 Datasheet, PDF (27/86 Pages) ams AG – Color and Proximity Sensor Module with mobeam

TMD4903 − Register Description
Figure 30:
ALS Interrupt Threshold Registers
ALS Interrupt Threshold Registers (0x84 – 0x87)
ALS level detection uses data generated by the Clear Channel.
The ALS Interrupt Threshold registers provide 16-bit values to
be used as the high and low thresholds for comparison to the
16-bit CDATA values. If AIEN is enabled and CDATA is not
between AILT and AIHT for the number of consecutive samples
specified in APERS an interrupt is asserted on the interrupt pin.
Field
AILT
AIHT
Register
0x84
0x85
0x86
0x87
Bits
7:0
15:8
7:0
15:8
Description
ALS low threshold low byte
ALS low threshold high byte
ALS high threshold low byte
ALS high threshold high byte
Proximity Interrupt Threshold Registers
(0x88 – 0x8B)
The Proximity Interrupt Threshold Registers set the high and
low trigger points for the comparison function which generates
an interrupt. If PDATA, the value generated by proximity
channel, crosses from above to below the lower threshold or
from below to above the upper threshold, an interrupt may be
signaled to the host processor. Interrupt generation is subject
to the value set in persistence filter (PPERS).
Figure 31:
Proximity Interrupt Threshold Registers
Field
PILT
PIHT
Register
0x88
0x89
0x8A
0x8B
Bits
7:0
15:8
7:0
15:8
Description
Proximity low threshold low byte
Proximity low threshold high byte
Proximity high threshold low byte
Proximity high threshold high byte
ams Datasheet
[v1-12] 2015-May-14
Page 27
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