Hi @Anton Maurovic (efabless support) @Mitch Bailey @Matt Venn I was trying the wishbone with my design. I have a slave in the user area and below is my code. when i read the wb data, I am only receivinng 0xffffffff . my reset data of slave is 0x00 . any idea why i am getting ffff ? I have a mux which routes my la data to wishbone slave which then sends to wishbone master. Issue is for the mux I used same la_oeb as select line and it selects my desired signal only when it’s low. But when I input the signal from la_oeb should be high.