Stratix V Device Handbook: Volume 2: Transceivers

ID 683779
Date 11/23/2021
Public
Document Table of Contents

1.3.2.4. PRBS Generator1.4.2.7. PRBS Generator

The PRBS generator block generates PRBS patterns and square wave patterns.

The PRBS generator:

  • Supports 32-bit and 40-bit PMA interfaces
  • Supports the following modes and patterns:
    • PRBS31: x31 + x28 + 1
    • PRBS9: x9 + x5 + 1
    • PRBS23: x23 + x18 + 1
    • PRBS7: x7 + x6 + 1
    • PRBS15: x15 + x14 + 1

The square-wave generator:

  • Has programmable n-number of consecutive serial bit 1s and 0s (where 4 ≤ n ≤ 11)
  • Supports both 32-bit and 40-bit PMA widths
Figure 33. Square Wave Generator


Note: You can enable either the PRBS generator or the PRP generator, but you cannot enable both at the same time.

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