| 1 | {{{ |
| 2 | #!div class=important style="border: 1pt solid; text-align: center;" |
| 3 | WORK IN PROGRESS - DON'T TRUST THIS DOCUMENTATION JUST YET... |
| 4 | }}} |
| 5 | |
| 6 | [[TracNav(HardwareUsersGuides/FMC-RF-2X245/TOC)]] |
| 7 | = FMC-RF-2X245 User Guide: MGT Interfaces = |
| 8 | |
| 9 | The FMC standard dedicates pins for 10 multi-gigabit transceivers (MGTs), labeled DP![0:9] in the standard. The Mango FMC-RF-2X245 module connects 4 transceivers to SATA connectors. |
| 10 | |
| 11 | '''Important''': the FMC-RF-2X245 module MGT interfaces are not intended for connections to SATA devices (like hard drives). While it may be possible to implement a standard SATA host in the FPGA and connect it to an SATA target via the FMC-RF-2X245 module, this is '''not''' something we have tested. These interfaces are intended for connections between FPGA kits, each equipped with FMC-RF-2X245 modules. |
| 12 | |
| 13 | == Connectors == |
| 14 | |
| 15 | The FMC-RF-2X245 module has four SATA connectors. Each connector is tied to a single 4 data signals on the FMC header (Tx +/-, Rx +/-). |
| 16 | |
| 17 | Two of the SATA connectors are wired as hosts; the other two are wired as targets. This allows two FMC-RF-2X245 modules to be connected via a standard (non-crossover) SATA cable. |
| 18 | |
| 19 | All Tx and Rx data lines for all 4 connectors are AC-coupled on the FMC-RF-2X245 module with 0.1µF capacitors. |
| 20 | |
| 21 | ||= Connector =||= Pinout =||= FMC DP =||= WARP v3 GTX =|| |
| 22 | || J3 || Host || DP4 || 115.2 || |
| 23 | || J8 || Target || DP5 || 115.0 || |
| 24 | || J7 || Target || DP6 || 115.1 || |
| 25 | || J1 || Host || DP7 || 115.3 || |
| 26 | |
| 27 | == Clocking == |