AS3661 datasheet(41/87 Pages) AMSCO

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AS3661

Datasheet - D e t a i l e d D e s c r i p t i o n

Table 15. LED2 CONTROL Register

LED2 CONTROL

Bit

Bit Name

Default

Access

Bit Description

7:6

LED2_MAPPING

R/W

This register defines the mapping of LED2 output to the master

faders. The faders can either be used for dimming several

LEDs in parallel or for ratiometric control of the output.

00: no master fader selected

01: MASTER FADER 1 controls LED2 output

10: MASTER FADER 2 controls LED2 output

11: MASTER FADER 3 controls LED2 output

LED2_LOG_EN

R/W

This bit is effective for both, program execution engine and

direct PWM control.

0: linear adjustment.

1: logarithmic adjustment.

4:0

LED2_TEMP_COMP

0 0000

R/W

The reference temperature is +25°C (i.e. the temper ature at

which all slope settings have no effect) and the temperature

coefficient (slope) can be set in 0.1 1/°C steps to any value

between -1.5 1/°C and +1.5 1/°C, with a default to 0.0 1/°C

11111: -1.5 1/°C

11110: -1.4 1/°C

...

00000: temperature compensation not activated

...

01110: +1.4 1/°C

01111: +1.5 1/°C

Table 16. LED3 CONTROL Register

LED3 CONTROL

Bit

Bit Name

Default

Access

Bit Description

7:6

LED3_MAPPING

R/W

This register defines the mapping of LED3 output to the master

faders. The faders can either be used for dimming several

LEDs in parallel or for ratiometric control of the output.

00: no master fader selected

01: MASTER FADER 1 controls LED3 output

10: MASTER FADER 2 controls LED3 output

11: MASTER FADER 3 controls LED3 output

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