TSL26717FN 데이터 시트보기 (PDF) - austriamicrosystems AG

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TSL26717FN

DIGITAL PROXIMITY DETECTOR

austriamicrosystems AG 

TSL2671

DIGITAL PROXIMITY DETECTOR

TAOS118 − JANUARY 2011

Interrupts

The interrupt feature simplifies and improves system efficiency by eliminating the need to poll the sensor for

a proximity value. The interrupt mode is determined by the state of the PIEN field in the ENABLE register.

Two 16-bit-wide interrupt threshold registers allow the user to define upper and lower threshold limits. An

interrupt can be generated when the proximity data (PDATA) exceeds the upper threshold value (PIHTx) or falls

below the lower threshold (PILTx).

To further control when an interrupt occurs, the device provides an interrupt persistence feature. This feature

allows the user to specify a number of conversion cycles for which an event exceeding the proximity interrupt

lid threshold must persist (PPERS) before actually generating an interrupt. See the register descriptions for details

on the length of the persistence.

PIHTH(r0x0B), PIHTL(r0x0A) PPERS(r0x0C, b7:4)

va Prox

Integration

Prox

ADC

ill CH0

CH1

Prox

Data

Upper Limit

Lower Limit

PILTH(r0x09), PILTL(r0x08)

Prox Persistence

Technicaaml scoAnGtent st Figure10.ProgrammableInterrupt

Copyright E 2011, TAOS Inc.

10

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www.taosinc.com

The LUMENOLOGY r Company

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