TMD2620 Datasheet, PDF (19/33 Pages) ams AG – The device is an advanced proximity sensor

TMD2620 − Register Description
Figure 30:
CALIBCFG Register
CALIBCFG Register (0xD9)
Field
7:5
4
3
Name
binsrch_target
Reserved
prox_auto_offset_
adjust
0xD9: CALIBCFG
Reset Type
Description
ADC target during binary search
Value
Target
0
0
1
1
2
3
3
7
4
15
5
31
0x2
RW
6
63
7
127
Note: This target is relative to 8-bit ADC values. In
the circuit, a 10-bit target is used (x4) of which the
lowest 2 bits are always ignored when checking for
zero during binary search and zero detection.
In hardware, this defines a mask of which bits to
ignore when comparing to zero. e.g. binsrch_
target=4 (target=15) means that values from the
ADC are AND'ed with 0xffc0 before comparing to
zero. Only values 16 or larger are taken as positive
ADC values.
0
RW Reserved. Set to 0.
This bit enables an automatic adjustment of the
offset used in proximity measurements. If this bit is
0
SC set, when a measurement returns zero, the value of
0xC0 will be decremented and offset_adjusted flag
will be set, bit 2 in 0xDC.
ams Datasheet
[v1-01] 2016-Aug-02
Page 19
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