Standard pcs pattern generators – Altera Transceiver PHY IP Core User Manual
Page 323
PRBS Verifier
You can use the PRBS pattern generators for verification or diagnostics. The pattern generator blocks
support the following patterns:
• Pseudo-random binary sequence (PRBS)
• Square wave
Table 12-18: PRBS Parameters
Parameter
Range
Description
Enable rx_std_prbs ports
On/Off
When you turn this option On, the PCS
includes the
rx_std_prbs_done
and
rx_std_
prbs_err
signals to provide status on PRBS
operation.
Related Information
Standard PCS Pattern Generators
The Standard PCS includes a pattern generator that generates and verifies the PRBS patterns.
Table 12-19: Standard PCS PRBS Patterns
PATTERN
POLYNOMIAL
PRBS-7
X
7
+ X
6
+ 1
PRBS-8
X
8
+ X
7
+X
3
+ X
2
+ 1
PRBS-10
X
10
+ X
7
+ 1
PRBS-15
X
15
+ X
14
+ 1
PRBS-23
X
23
+ X
18
+ 1
PRBS-31
X
31
+ X
28
+ 1
The Standard PCS requires a specific word alignment for the PRBS pattern. You must specify a word
alignment pattern in the verifier that matches the generator pattern specified. In the Standard PCS, PRBS
patterns available depend upon the PCS-PMA width. The following table below illustrates the patterns are
available based upon the PCS-PMA width.
Table 12-20: PRBS Patterns in the 8G PCS with PCS-PMA Widths
PCS-PMA Width
8-Bit
10-Bit
16-Bit
20-Bit
PRBS-7
X
X
X
PRBS-8
X
UG-01080
2015.01.19
Standard PCS Pattern Generators
12-25
Stratix V Transceiver Native PHY IP Core
Altera Corporation