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Altera_Forum
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11 years ago

Legacy interrupt issue in pcie hard_ip

hi, we are using altera Pcie hard ip (stratix-4GX). We have generated an interrupt using legacy i.e in hard ip we have controlled an interrupt using app_int_req,app_int_ack variables In hard ...
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Altera_Forum
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10 years ago

PCIe core configuration space register address 0x3D defined Interrupt Pin as below:

- 0x00: No INT x# pin used

- 0x01: INTA# used

- 0x02: INTB# used

- 0x03: INTC# used

- 0x04: INTD# used

The Interrupt Pin is default to 0x01: INTA# used.

When have multiple legacy interrupts, this field might needs to change to avoid conflict.