we will be using both Camera Interfaces of the Apalis QuadCore SOM. What i currently cannot figure out was how the Impedance matching is done on APALIS Side. When i took a look into the Evaluation Board Schematic i see Series Resistors placed in the Single Ended Signal Lines everywhere, as also in the Paralell Camera Interface. They are placed near the SOM Connector, but i wonder why this is done, if the Impedance of the trace is matched to 50Ohm?
Furthermore the Layout Design Guide says that all single ended Signals should be routed with 50Ohm Impedance, but where are the termination resistors placed? In the imx6 Datasheet i found no Information about some integrated switchable Termination Resistors, so i expect the matching Resistors on the Apalis Module itself.
So if i want to use IPU1_CSI0_DATA10 and IPU1_CSI0_DATA11 because i have to, i am afraid that there wont be any matching resistors on the module, because this pins share UART1.
Please give me some advice about CSI termination, i am very new to designing with SOMs.
Thanks in advance,