We recently upgraded our design from an ADAU1701 to a ADAU1451. We are using GPIO output pins MP6 and MP7 to indicate audio signal presence, using the signal detect block.
In the ADAU1701 I could invert the polarity of MP6 and MP7 in the register settings so that the output is High when a signal is present.
In the ADAU1451 I can find no easy way to invert the MP6 and MP7 output pins and instead have an active low signal presence flag.
Is there any way to easily invert the sense of the GPIO MP6 and MP7 output pins?