FMC_LOOPBACK - FMC Loopback Module¶
Fields¶
| Name | Type | Description |
|---|---|---|
| SOFT_RESET | write action | GTX Soft Reset |
| LOOP_PERIOD | param | Loopback toggle period for IO |
| FMC_PRSNT | read | FMC present |
| LINK_UP | read | GTX link status |
| ERROR_COUNT | read | GTX loopback |
| LA_P_ERROR | read | LA_P loopback status |
| LA_N_ERROR | read | LA_N loopback status |
| GTREFCLK | read | GT Ref clock freq |
| FMC_CLK0 | read | FMC CLK0 clock freq |
| FMC_CLK1 | read | FMC CLK1 clock freq |
| EXT_CLK | read | External clock freq |
| FMC_MAC_LO | read | MAC low in integer value bit 23:0 |
| FMC_MAC_HI | read | MAC high in integer value bit 47:24 |