If you cannot find it on AMD’s website (they reorganize links occasionally), try this direct search string in Google: "kr260_schematic_rev1.0.pdf" filetype:pdf
You need the .
The KR260 is a carrier card for the Kria K26 SOM (System-on-Module). The schematic shows the connector (J30) that interfaces to the SOM. You will see signals like SOM_IO_0 or PS_MIO_23 . kria kr260 schematic