Hello All,
I would like to know how to generate PCIe
INTx interrupt from Legacy PCIe
EP in PPC440SPe.
Also, please clarify,
Page 741 of the user manual (PPC440SPe_UM2014_V1_26.pdf) write
Assert_INTx message to INT_ADDR[61:63].
Page 739, table 27-9, mentions, Assert_INTA
by writing to Outbound GBIF write channel 9, A[52:59]=0x20.
Whether the INT_ADDR is any addresses BAR3 / POM3 address?
What is the Assert_INTx value to be written to INT_ADDR[61:63]? How
do I correlate with the message code values given in PCI express system architecture?
The message codes given in PCI express system architecture
is as follows
|
INTx Messages |
Message Code |
|
Assert_INTA |
0010 0000 |
|
Assert_INTB |
0010 0001 |
|
Assert_INTC |
0010 0010 |
|
Assert_INTD |
0010 0011 |
|
Deassert_INTA |
0010 0100 |
|
Deassert_INTB |
0010 0101 |
|
Deassert_INTC |
0010 0110 |
|
Deassert_INTD |
0010 0111 |
Regards,