Datasheet

VCNL4000
www.vishay.com
Vishay Semiconductors
Rev. 1.6, 24-Aug-11
8
Document Number: 83798
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Register #5 and #6 Ambient Light Result Register
Register address = 85h and 86h. These registers are the result registers for ambient light measurement readings.
The result is a 16 bit value. The high byte is stored in register #5 and the low byte in register #6.
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 Proximity Measurement Signal Frequency
Register address = 89h.
TABLE 5 - AMBIENT LIGHT RESULT REGISTER #5
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Description
Read only bits. High byte (15:8) of ambient light measurement result
TABLE 6 - AMBIENT LIGHT RESULT REGISTER #6
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Description
Read only bits. Low byte (7:0) of ambient light measurement result
TABLE 7 - PROXIMITY RESULT REGISTER #7
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Description
Read only bits. High byte (15:8) of proximity measurement result
TABLE 8 - PROXIMITY RESULT REGISTER #8
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Description
Read only bits. Low byte (7:0) of proximity measurement result
TABLE 9 - PROXIMITY MEASUREMENT SIGNAL FREQUENCY #9
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
N/A Proximity frequency
Description
Bit 0 and 1
Proximity frequency
R/W bits. Setting the proximity IR test signal frequency. The proximity measurement is using a square IR
signal as measurement signal. Four different values are possible:
00 = 3.125 MHz
01 = 1.5625 MHz
02 = 781.25 kHz (DEFAULT)
03 = 390.625 kHz