Data Sheet

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Optical Sensor
LTR-559ALS-01
PS_THRES Register (0x90 / 0x91 / 0x92 / 0x93)
The PS_THRES_UP and PS_THRES_LOW registers determines the upper and lower limit of the interrupt threshold
value respectively. These two values form a range and the interrupt function compares if the measurement value in
PS_DATA registers is inside or outside the range. The interrupt function is active if the measurement data is outside the
range defined by the upper and lower limits. The data format for PS_THRES must be the same as PS_DATA registers.
These registers must be applied dynamically to have hysteresis interruption.
0x90
PS_THRES_UP_0 (default = 0xFF)
B7
B6
B5
B4
B3
B2
B1
B0
PS Upper Threshold Low
0x91
PS_THRES_UP_1 (default = 0x07)
B7
B6
B5
B4
B3
B2
B1
B0
Reserved
PS Upper Threshold High
0x92
PS_THRES_LOW_0 (default = 0x00)
B7
B6
B5
B4
B3
B2
B1
B0
PS Lower Threshold Low
0x93
PS_THRES_LOW_1 (default = 0x00)
B7
B6
B5
B4
B3
B2
B1
B0
Reserved
PS Lower Threshold High