Xilinx LogiCORE IP Spartan-6 Getting Started Manual page 37

Table 3-21: Channel Bonding Setup
Options
Use Channel Bonding
Master Transceiver
Use Two Channel
Bonding Sequences
Sequence Length
Sequence 1 Max Skew
Sequence 2 Max Skew
Table 3-22
Table 3-22: Sequence Definition
Option
Set each symbol to match the pattern the protocol requires. The PCI EXPRESS sequence length is 8
bits. 01001010 is used for the first three symbols of sequence 1. Symbol 4, sequence 1 and symbol
Byte (Symbol)
3, sequence 2 are set to 10111100. Symbols 1 and 2 of Sequence 2 are set to 00111100. Symbol 4
of Sequence 2 is set to 00011100.
This option is available when 8B/10B decoding is selected. When checked, the symbol is an 8B/10B
K Character
K character.
Some protocols with 8B/10B decoding use symbols with deliberately inverted disparity. This
Inverted Disparity
option should be checked when such symbols are expected in the sequence.
Multiple-byte sequences can have wild card symbols by checking this option. Unused bytes in the
Don't Care
sequence automatically have this option set.
Table 3-23, page 38
Spartan-6 FPGA GTP Transceiver Wizard v1.8
UG546 (v1.8) December 14, 2010
Enables receiver channel bonding logic using unique character sequences. When recognized,
these sequences allow for adding or deleting characters in the receive buffer to byte-align
multiple data transceivers.
Indicates which transceiver from the selected pair(s) will function as the Channel Bonding
master.
Activates the optional second Channel Bonding sequence. Detection of either sequence
triggers channel bonding.
Select from the drop down list the number of characters in the unique channel bonding
sequence.
The PCI EXPRESS example uses 4.
Select from the drop down list the maximum skew in characters that can be handled by
channel bonding. Must always be less than the minimum distance between channel bonding
sequences.
The PCI EXPRESS example uses 7.
Same as Sequence 1 max skew.
describes the Channel Bonding sequence definition.
describes the Clock Correction settings.
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Description
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Generating the Core
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