Altera JNEye - Manual (Page 13)

Test Pattern
Allows you to specify the test pattern used in the simulation. The following test patterns are available:
• PRBS-7, PRBS-9, PRBS-11, PRBS-15, PRBS-23, and PRBS-31
• The PRBS test patterns are generated using JNEye’s built-in pattern generator.
• If the whole PRBS pattern is shorter than the simulation length, the PRBS pattern is inverted and
repeated. The inversion is applied to achieve DC balance of the generated PRBS test pattern.
• If the PRBS patterns are longer than the simulation length, a partial test pattern of the PRBS pattern
is used. The default initial condition of PRBS test pattern generation is with logic 1s in all shift
registers for the valid PRBS patterns.
• The most commonly used PRBS test patterns are listed in the Test Pattern menu. Other PRBS test
pattern can be selected or configured in the Pattern Designer.
UG-1146
2015.05.04
Link and Simulation Setting 2-7
Functional Description Altera Corporation
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