Intel® Quartus® Prime Pro Edition User Guide: Partial Reconfiguration

ID 683834
Date 10/04/2021

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2.3.3. Interrupt Interface

If you enable the Avalon® Memory Mapped agent interface, you can use the optional interrupt interface of the Partial Reconfiguration Controller Intel® Arria® 10 /Cyclone 10 FPGA IP.

The IP core asserts irq during the following events:

Table 19.  Interrupt Interface Events
Status Code Event
3'b001 PR_ERROR occurred.
3'b010 CRC_ERROR occurred.
3'b011 The IP core detects an incompatible bitstream.
3'b101 The result of a successful PR operation.

After irq asserts, the host performs one or more of the following:

  • Query for the status of the PR IP core; PR_CSR[4:2].
  • Carry out some action, such as error reporting.
  • Once the interrupt is serviced, clear the interrupt by writing a "1" to PR_CSR[5].