![](/images/new-backgrounds/1264492/264492397x1.webp)
Loopback
R
FPGA |
|
Ethernet |
|
PCS/PMA or SGMII Core | RocketIO |
| |
Idle Stream | Transceiver |
| Tx |
PCS Tx Engine |
|
PCS Rx Engine | Rx |
| |
loopback control |
|
Loopback occurs in core
Figure 14-2: Loopback Implementation When Using the Core with RocketIO
Transceivers
Ethernet | www.xilinx.com | 199 |