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MAX86140 Datasheet(PDF) 60 Page - Maxim Integrated Products |
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MAX86140 Datasheet(HTML) 60 Page - Maxim Integrated Products |
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60 / 89 page  Interrupt Enable 1 (0x02) A_FULL_EN DATA_RDY_EN ALC_OVF_EN PROX_INT_EN When PROX_INT_EN is enabled, the exposure programmed in the LEDC1 Sequence Register is used for proximity detection. If the ADC reading for this exposure is below 2048 times the threshold programmed in PROX_INT_THRESH register, the device is in proximity mode. Otherwise, it is in normal mode. When the device is in proximity mode, the sample rate used is 8Hz, and the device starts data acquisition in pilot mode, using only one exposure of the LED programmed in LEDC1 register, and the LED current programmed in PILOT_PA reg- ister. When the device is in normal mode, the sample rate used is as defined under PPG_SR register, and the device starts data acquisition in normal mode, using all the exposures programmed in the LED Sequence registers and appropriate LED currents. PROX_INT interrupt is asserted when the devices enters proximity mode or normal mode if PROX_INT_EN is programmed to 1. LED_COMPB_EN BIT 7 6 5 4 3 2 1 0 Field A_FULL_EN DATA_ RDY_EN ALC_OVF_ EN PROX_INT_ EN LED_ COMPB_EN DIE_TEMP_ RDY_EN VDD_OOR_ EN – Reset 0x0 0x0 0x0 0x0 0x0 0x0 0x0 – Access Type Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read – VALUE ENUMERATION DECODE 0 OFF A_FULL interrupt is disabled 1 ON A_FULL interrupt in enabled VALUE ENUMERATION DECODE 0 OFF DATA_RDY interrupt is disabled 1 ON DATA_RDY interrupt is enabled. VALUE ENUMERATION DECODE 0 OFF ALC_OVF interrupt is disabled 1 ON ALC_OVF interrupt in enabled VALUE ENUMERATION DECODE 0 OFF Proximity mode and PROX_INT interrupt are disabled 1 ON Proximity mode and PROX_INT interrupt are enabled VALUE ENUMERATION DECODE 0 DISABLE LED_COMPB interrupt is disabled 1 ENABLE LED_COMPB interrupt is enabled www.maximintegrated.com Maxim Integrated │ 60 MAX86140/ MAX86141 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health |
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