TCS3530 datasheet(28/106 Pages) OSRAM

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Datasheet, Public

Page 27

[v3-00] 2023-Jun-23

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TCS3530 − Register Overview

MEAS_MODE0 Register

Figure 25:

MEAS_MODE0

Note(s):

1. Return to the Register Map (0x81).

Addr: 0x81

MEAS_MODE0

Bit

Field

Reset

Type

Bit Description

STOP_AFTER_NTH_

ITERATION

0R/W

Stops a manual calibration after nth iterations by setting

FDEN and AEN to “0”. PON will stay at “1”. Per default it stops

after one calibration.

ENABLE_AGC_

ASAT_DOUBLE_

STEP_DOWN

0R/W

Enables two gain steps down at once in case of an

analogue AGC saturation and at a gain step still >0. This will

allow a faster reach of 25% full-scale range and a more

prompt reaction if analogue saturations occurs.

MEASUREMENT_

SEQUENCER_

SINGLE_SHOT_

MODE

0R/W

Start one measurement cycle with sequencer settings and

stop it by asserting Sleep After Interrupt (SAI)

MOD_FIFO_ALS_

STATUS_WRITE_

ENABLE

0R/W

Enables writing of ALS status to the FIFO RAM in case ALS

data scaling is used as well as 16-bit ALS data writing. It is

needed to be able to correctly interpret the ALS data.

3:0

ALS_SCALE

R/W

ALS_SCALE is used to avoid that redundant ALS MSBs are

transmitted and are reducing possible resolution, since the

ALS data register is only 16 bits wide (internally the result

can be 26 bits wide = 11 bits samples + 11 bits sampling

time + 4 bits residuals - ALS_MSB_POSITION). The ALS_

SCALE register defines the number of MSBs which must be

"0" so that the scaled representation is used in the ALS data

registers instead of the unscaled representation.

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