| # IOB18 Fuzzer |
| |
| This fuzzer solves the bits related to the IO pads in the |
| high performance banks, which are present in most of the |
| Kintex and Virtex devices (a notable exception are K420T and K480T) |
| using bank numbers of 30 and above. |
| |
| These banks have a maximum voltage of 1.8V which is the reason |
| why many of the BEL names end in 18 (as opposed to 33 for the |
| high range banks, which run on a maximum voltage of 3.3V). |
| |
| Currently the focus is on supporting the most used IO standards; |
| On most boards, the high performance banks are connected to DDR3 |
| memory and this mandates the support of single ended and differential |
| SSTL15. |
| Of course, all the LVCMOS variants and LVDS are a must have too. |
| |
| Currently unsupported are digitally controlled impedance |
| (usually indicated by the regular IO standard names with a |
| _DCI and _T_DCI suffix). |
