DS90UH941AS-Q1: 941 with external or internal timing

Hi Elec

Elec Cheng said:

As you can see below for 941 0x65 reg, my understanding is that if I use internal video timing, I can choose internal or external pixel clock, but if I use external video timing, I can  only use external pixel clock. Am I right? 

This is correct, in the case of the external video timing you can choose between DSI clock and REFCLK clock modes as well. 

Elec Cheng said:

2.In the attached application note, section 4.3, it says "with the pixel clock and all timing signals generated internally". But the 0x65 reg value is configurated as 0x03. This makes very confused. I think bit2 should be "1".  What's your opinion? 

0x03 does correspond to bit2 being 1, so your logic is correct. 

Regards, 

Logan