DS90UB936-Q1: Back channel GPIO mapping support

Hello Chris,

yes this is supported!

Are you also looking for how to forward GPIO5 to GPIO3, or you do have different GPIOs?

Hi Hamzeh Jaradat

Thanks for your quick reply.

I do have different setting. I need map Deserializer GPIO0,1,2, from rxport1 Serializer GPIO0,1,2

Deserializer GPIO3 as interrupt

Deserializer GPIO4 to rxport1 Serializer GPIO3

Deserializer GPIO5,6 to rxport0 Serializer GPIO0,1,0

Please check following table, could you give how to set the register setting?

                Deserializer          Serializer        Note      
--------------------------------------------------------------------------
SOC I2S   <-    GPIO0           <-    rxport 1, GPIO0   Microphone, FRCK
SOC I2S   <-    GPIO1           <-    rxport 1, GPIO1   Microphone, BCK
SOC I2S   <-    GPIO2           <-    rxport 1, GPIO2   Microphone, SDATA
SOC GPIO  <-    GPIO3(INT)
SOC GPIO  ->    GPIO4           ->    rxport 1, GPIO3   Camera power
SOC GPIO  ->    GPIO5           ->    rxport 0, GPIO1   Camera power
SOC GPIO  ->    GPIO6           ->    rxport 0, GPIO0   Camera reset

Hello Chris,

so you want the following settings, correct?

936 RX Port0:
Input = GPIO5 to SER GPIO1
Input = GPIO6 to SER GPIO0

936 RX Port1:
Input = GPIO4 to SER GPIO3

Output = GPIO0 from SER GPIO0
Output = GPIO1 from SER GPIO1
Output = GPIO2 from SER GPIO2
Output = GPIO3 Interrupt

Hi Hamzeh Jaradat,

Yes, that's exactly correct.