What does _CH[B,T]p mean? - What does _CH[B,T]p mean? Hi Everyone! I have a question about pin name. In pdf document "Intel Arria 10 GX, GT, and SX Device Family Pin Connection Guidelines" Explained.. RREF_[ T , B ][ L , R ] - . . . top ( T ) side or bottom ( B ) side and left ( L ) side or right ( R ) side of the device. So, my question is below... 1. REFCLK_GXB[L1,R4] [C,D,E,F,G,H,I,J]_ CH [ B,T ]n What does CH mean? What does [ B,T ] mean? Is this a Bottom or Top? 2. VREFB[[2][A,F,G,H,I,J,K, L], [3][A, B,C,D,E,F,G, H]] N0 What does N0 mean? Thanks! Replies: Re: What does _CH[B,T]p mean? Right. So after I pick one that is most convenient, do I connect the other ground or leave floating? Replies: Re: What does _CH[B,T]p mean? Top or bottom edge of the device. Replies: Re: What does _CH[B,T]p mean? I know this is from 3 years ago, but.... Which clock do I choose for the REF_CLK_GXBL?? for the transceiver in that same IO Bank, B or T? Do I connect both to the same clock source? Do I only connect one and the other to ground? Does it matter which one I choose? Why does the FPGA that has all its connections in a ball grid array on th bottom have a clock input labeled as Top or Bottom? Replies: Re: What does _CH[B,T]p mean? To WZ2 Thanks! Replies: Re: What does _CH[B,T]p mean? Hi there, For1. CH is Channal, b t is bottom and top. For2. There is no meaning for N0. You don’t need to care about it~ Best regards, WZ