Altera JESD204B IP User Manual
Page 122
Parameter
Value
(37)
Default
Description
FEEDBACK_TAP 6, 5, 14, 18,
28
6
Defines the feedback tap for the PRBS pattern generator and
checker. This is an intermediate stage that is XOR-ed with the
last stage to generate to next PRBS bit.
• If PRBS-7 is required, set this parameter to 6.
• If PRBS-9 is required, set this parameter to 5.
• If PRBS-15 is required, set this parameter to 14.
• If PRBS-23 is required, set this parameter to 18.
• If PRBS-31 is required, set this parameter to 28.
Table below lists the configuration that this design example supports. However, the design example
generated by the Qsys system is always fixed at a data rate of 6144 Mbps and a limited set of configuration
as shown in the table below. If your setting in the Qsys parameter editor does not match one of the LMF
and bonded mode parameter values in
Table
, the design example is generated with the default values of
LMF = 124.
Table 5-19: Static and Dynamic Reconfiguration Parameter Values Supported
Mode
Link
L
M
F
Reference
Clock
Frame
Clock
Link
Clock
F1_
FRAMECLK_
DIV
F2_
FRAMECLK_
DIV
Static
Bonded/Non-bonded
2
1
1
2
153.6
153.6
153.6
2
Bonded/Non-bonded
1
1
1
4
153.6
153.6
153.6
1
Bonded/Non-bonded
1
1
2
4
153.6
153.6
153.6
1
Bonded/Non-bonded
1
1
4
8
153.6
76.8
153.6
1
Bonded/Non-bonded
1
2
1
1
153.6
153.6
153.6
4
Bonded/Non-bonded
1
2
1
2
153.6
153.6
153.6
2
Bonded/Non-bonded
1
2
1
4
153.6
153.6
153.6
1
Bonded/Non-bonded
2
2
2
2
153.6
153.6
153.6
2
Bonded/Non-bonded
1
2
2
4
153.6
153.6
153.6
1
Bonded/Non-bonded
1
2
4
4
153.6
153.6
153.6
1
Bonded/Non-bonded
1
4
2
1
153.6
153.6
153.6
4
Bonded/Non-bonded
1
4
2
2
153.6
153.6
153.6
2
Bonded/Non-bonded
1
4
4
2
153.6
153.6
153.6
2
Bonded/Non-bonded
1
4
4
4
153.6
153.6
153.6
1
Bonded/Non-bonded
1
4
8
4
153.6
153.6
153.6
1
(37)
Values supported or demonstrated by this design example.
UG-01142
2015.05.04
System Parameters
5-41
JESD204B IP Core Design Guidelines
Altera Corporation