VCNL4020

www.vishay.com

Vishay Semiconductors

Rev. 1.1, 20-Jul-12

9

Document Number: 83476

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Register #7 and #8 Proximity Measurement Result Register

Register address = 87h and 88h. These registers are the result registers for proximity measurement readings.

The result is a 16 bit value. The high byte is stored in register #7 and the low byte in register #8.

Register #9 Interrupt Control Register

Register address = 89h.

TABLE 8 - PROXIMITY RESULT REGISTER #7

Bit 7Bit 6

Bit 5Bit 4

Bit 3Bit 2Bit 1Bit 0

Description

Read only bits. High byte (15:8) of proximity measurement result

TABLE 9 - PROXIMITY RESULT REGISTER #8

Bit 7Bit 6

Bit 5Bit 4

Bit 3Bit 2Bit 1Bit 0

Description

Read only bits. Low byte (7:0) of proximity measurement result

TABLE 10 - INTERRUPT CONTROL REGISTER #9

Bit 7Bit 6

Bit 5Bit 4

Bit 3Bit 2Bit 1Bit 0

Int count exceed

n/a

INT_PROX_

ready_EN

INT_ALS_

ready_EN

INT_THRES_EN

INT_THRES_

SEL

Description

Int count exceed

R/W bits. These bits contain the number of consecutive measurements needed above/below the

threshold

000 - 1 count = DEFAULT

001 - 2 count

010 - 4 count

011 - 8 count

100 -16 count

101 - 32 count

110 - 64 count

111 - 128 count

INT_PROX_ready_EN

R/W bit. Enables interrupt generation at proximity data ready

INT_ALS_ ready_EN

R/W bit. Enables interrupt generation at ambient data ready

INT_THRES_EN

R/W bit. Enables interrupt generation when high or low threshold is exceeded

INT_THRES_SEL

R/W bit. If 0: thresholds are applied to proximity measurements

If 1: thresholds are applied to als measurements