ZOPT2202 Datasheet

© 2016 Integrated Device Technology, Inc

32

September 21, 2016

3.10.10

COMP_DATA

Address

16HEX and 17HEX and 18HEX

Default value

00HEX and 00HEX and 00HEX

Register access

R

Bit

7

6

5

4

3

2

1

0

16HEX

COMP_DATA_0[7:0]

17HEX

COMP_DATA_1[15:8]

18HEX

0

0

0

0

COMP_DATA_2[19:16]

Digital output data from the temperature and stray light compensation channel for UVA and UVB2 data (COMP) (unsigned

integer, 13 to 20 bit, LSB aligned).

Applied compensation depends on operation mode. See section 3.4 for details.

When an I²C read operation is active and points to an address in the range 07HEX to 18HEX, all registers in this range are

locked until the I²C read operation is completed or this address range is left.

This guarantees that the data in the registers belongs to the same measurement cycle. New measurement data is stored

into temporary registers and the actual *_DATA registers are updated as soon as there is no on-going I²C read operation

in the address range 07HEX to 18HEX.

Register 16HEX

Bit[7:0]

COMP diode data least significant data byte

Register 17HEX

Bit[7:0]

COMP diode data intervening data byte

Register 18HEX

Bit[3:0]

COMP diode data most significant data byte