AS3695C

austriamicrosystems

www.austriamicrosystems.com

Rev 1.11 / 2010-12-08

13 - 39

The PWMxHT-values are double buffered. HighTime values for the next VSYNC can be written even

when the current HighTime is not finished.

4.2.4 PWM direct control

The internal signals PWMx can also be direct applied at the VSYNC input if the bit PWMext=1.

4.2.5 VSYNC detect

The VSYNCdet=1 the VSYNC detector monitors the presence of a VSYNC siglnal. If If the VSYNC

signal is missing for more than 100ms current outputs are temporary turned off.

4.2.6 VSYNC duration

Since the VSYNC input is connected to an edge detector, there is no restriction on the duration of the

VSYNC pulse.