3.3.9.1.2. Unsuccessful PR Session with Configuration Frame Readback Error ( Arria 10 Example) - 2026-02-19

Quartus Prime Pro Edition User Guide Partial Reconfiguration
Version
25.1
The following flow describes an Arria® 10 PR session with error in the EDCRC verification of a configuration frame readback:
  1. The PR control block internally detects a CRC error.
  2. The CRC control block then asserts CRC_ERROR.
  3. The PR control block asserts the PR_ERROR.
  4. The PR control block deasserts PR_READY, so that the host can withdraw the PR_REQUEST.
  5. The PR control block deasserts CRC_ERROR and clears the internal CRC_ERROR signal to get ready for a new PR session. The host can now initiate another PR session.
Figure 62. Timing Diagram for Unsuccessful Arria® 10 PR Session with Configuration Frame Readback Error