198 www.xilinx.com 7 Series FPGAs GTP Transceivers User Guide
UG482 (v1.9) December 19, 2016
Chapter 4: Receiver
skew between each lane and adjust the latency of RX elastic buffers, so that data is presented
without skew at the RX fabric user interface.
RX channel bonding supports 8B/10B encoded data but does not support these encoded data types:
• 64B/66B
• 64B/67B
• 128B/130B
• Scrambled data
X-Ref Target - Figure 4-47
Figure 4-47: Channel Bonding Conceptual View
Elastic Buffer
GTP0 (Master)
GTP1 (Slave)
UG482_c4_29_111011
Deskewed
Data
RX Data in Two Clock Cycles
Ahead of GTP1 Data
Set to 4 Cycles of Latency by
Channel Bonding Controller
data data
SEQ
4
SEQ
3
SEQ
2
SEQ
1
Elastic Buffer
RX Data in Two Clock Cycles
Behind GTP0 Data
Set to 2 Cycles of Latency by
Channel Bonding Controller
data data
SEQ
4
SEQ
3
SEQ
2
SEQ
1
data data
SEQ
4
SEQ
3
SEQ
2
SEQ
1
Deskewed
Data
data data
SEQ
4
SEQ
3
SEQ
2
SEQ
1
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