TMD2725 Datasheet, PDF (22/50 Pages) ams AG – The device features advanced proximity measurement

TMD2725 − RegisterDescription
Figure 28:
AIHTH Register
Addr: 0x87
Bit Bit Name
7:0
AIHTH
Default
0x00
AIHTH Register (Address 0x87)
Access
RW
AIHTH
Bit Description
This register sets the high byte of the HIGH ALS
threshold.
Figure 29:
PILT Register
The photopic channel is compared against high-going 16-bit
threshold value set by AIHTL and AIHTH.
The contents of the AIHTH and AIHTL registers are combined
and treated as a sixteen bit threshold value. If the value
generated by the photopic channel is above the AIHTL/H
threshold and the APERS value is reached, the AINT bit is
asserted. If AIEN is set, then the INT pin will also assert.
When setting the 16-bit ALS threshold AIHTL must be written
first, immediately follow by AIHTH. Internally, the lower 8-bits
are buffered until the upper 8-bits are written. As the upper
8-bits are written both the high and low bytes are
simultaneously latched as a 16-bit value.
PILT Register (Address 0x88)
Addr: 0x88
Bit Bit Name
Default
7:0
PILT
0x00
PILT
Access
Bit Description
RW
This register sets the Proximity ADC channel low
threshold.
The proximity channel is compared against low-going 8-bit
threshold value set by PILT.
If the value generated by the Proximity channel is below the
PILT threshold and the PPERS value is reached, the PINT bit is
asserted. If PIEN is set, then the INT pin will also assert.
Page 22
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ams Datasheet
[v1-11] 2016-Sep-20