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Interrupt Enable 1 (0x02)

BIT

Field

A_FULL_EN PPG_RDY_

ALC_OVF_

PROX_INT_

—

Reset

0x0

—

Access Type Write, Read Write, Read Write, Read Write, Read

—

A_FULL_EN: FIFO Almost Full Flag Enable

VALUE

ENUMERATION

DECODE

OFF

A_FULL interrupt is disabled

A_FULL interrupt is enabled

PPG_RDY_EN: New PPG FIFO Data Ready Interrupt enable

VALUE

ENUMERATION

DECODE

OFF

PPG_RDY interrupt is disabled

PPG_RDY interrupt is enabled.

ALC_OVF_EN: Ambient Light Cancellation (ALC) Overflow Interrupt Enable

The ALC_OVF flag is triggered when the ambient light cancellation function has reached its maximum limit due to over-

flow. At this point, the ADC output is affected by the ambient light.

VALUE

ENUMERATION

DECODE

OFF

ALC_OVF interrupt is disabled

ALC_OVF interrupt is enabled

PROX_INT_EN: Proximity Interrupt Enable

When the FIFO Data Control Register is configured to initiate PPG measurement, the IR LED is turned on in proximity

mode with a drive current set by the PILOT_PA register. When an object is detected by exceeding the IR ADC count

threshold (set in the PROX_INT_ THRESH register), PROX_INT interrupt is asserted and the part transitions to the

normal SpO2/HR mode.

VALUE

ENUMERATION

DECODE

OFF

PROX_INT interrupt is disabled

PROX_INT interrupt is enabled

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MAX86150

Integrated Photoplethysmogram and

Electrocardiogram Bio-Sensor Module For

Mobile Health

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