Stratix V Avalon-ST Interface with SR-IOV PCIe Solutions: User Guide
5.15.9. Lane Status Registers
| Bits |
Register Description |
Default Value |
Access |
|---|---|---|---|
| [7:0] |
Lane Error Status: Each 1 indicates an error was detected in the corresponding lane. Only Bit 0 is implemented when the link width is 1. Bits [1:0] are implemented when the link width is 2, and so on. The other bits read as 0. This register is present only in PF0 when the maximum data rate is 8 Gbps. |
0 |
RW1CS |
| [31:8] |
Reserved |
0 |
RO |
| Bits |
Register Description |
Default Value |
Access |
|---|---|---|---|
| [6:0] |
Reserved |
0x7F |
RO |
| [7] |
Reserved |
0 |
RO |
| [11:8] |
Upstream Port Lane 0 Transmitter Preset |
0xF |
RO |
| [14:12] |
Upstream Port Lane 0 Receiver Preset Hint |
0x7 |
RO |
| [15] |
Reserved |
0 |
RO |
| [22:16] |
Reserved |
0x7F |
RO |
| [23] |
Reserved |
0 |
RO |
| [27:24] |
Upstream Port Lane 1 Transmitter Preset |
0xF when link width > 1 0 when link width = 1 |
RO |
| [30:28] |
Upstream Port Lane 1 Receiver Preset Hint |
0x7 when link width > 1 0 when link width = 1 |
RO |
| [31] |
Reserved |
0 |
RO |