AS7038RB datasheet(99/127 Pages) AMSOSRAM

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AS7038RB

Functional Description

Datasheet

• PUBLIC

DS000726

• v2-00 • 2021-Jun-02

126

│ 98

7.1.20

ADC Registers

ADC_THRESHOLD (Address 0x68)

Figure 130:

ADC_THRESHOLD Register

Addr: 0x68

ADC_THRESHOLD

Bit

Bit Name

Default

Access

Bit Description

7:0

adc_threshold

0xff

If the ADC returns a value above

adc_threshold (not equal), then the

adc_threshold interrupt can be

triggered. Note that when only the

upper 8 bits are compared, the lower 6

bits are ignored. A value of 0xff can

therefore never trigger the interrupt

ADC_THRESHOLD_CFG (Address 0x69)

Figure 131:

ADC_THRESHOLD_CFG Register

Addr: 0x69

ADC_THRESHOLD_CFG

Bit

Bit Name

Default

Access

Bit Description

7:2

Not used

adc_thresh_differential

If adc_thresh_tia only is asserted and

any of seq_adc[23]tia is non-zero,

meaning that there are two or three

ADC TIA measurements in one

sequencer period, then the second is

subtracted from the first, and the

difference is being compared to the

adc_threshold.

adc_thresh_tiaonly

Normally, the adc_threshold works

regardless of the adc channel.

If this bit is set, then the threshold is

only checked if the adc channel is TIA

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