TCS3408 datasheet(35/53 Pages) OSRAM

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TCS3408 − Register O ver view

Status Registers

The primary status register for TCS3408 indicates if there are

saturation or interrupt events that need to be handled by the

user. This register is self-clearing, meaning that writing a 1 to

any bit in the register clears that status bit. In this way, the user

should read the STATUS register, handle all indicated event(s),

then write the register value back to STATUS to clear the

handled events. Writing 0 to these bits will not clear those bits

if they have a value of 1, which means that new events that

occurred since the last read of the STATUS register will not be

accidentally cleared.

Figure 40:

STATUS

Note(s):

1. Return to the Register Map (0x93).

Additional status registers indicate details about saturation,

interrupts, and device execution.

Addr: 0x93

STATUS

Bit

Field

Reset

Type

Bit Description

7ASAT

ALS and Flicker Detect Saturation. If ASIEN is set,

indicates ALS saturation. Check the STATUS2 register

to differentiate between analog or digital saturation.

6:4

Reserved

3AINT

ALS Interrupt. If AIEN is set, indicates that an ALS

event that met the programmed ALS thresholds

(AILT or AIHT) and persistence (APERS) occurred.

Reserved

1CINT

Calibration Interrupt. If CIEN is set, indicates that

either calibration is finished or that one of certain

events have occurred during normal operation. If

each function is enabled, CINT will be asserted if too

many zeroes occur too often in a period of samples, if

the proximity baseline has decreased, or if at least

one offset register has been adjusted. Check the

CALIBSTAT register to identify the triggering event(s).

0SINT

System Interrupt. If SIEN is set, indicates that one or

more of several events has occurred or is complete.

The events related to this interrupt are indicated in

the STATUS5 register (0xA6): flicker detection register

status has changed.

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