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AR# 47109

Virtex-5 Endpoint Block Plus for PCI Express - Value for cfg_interrupt_mmenable signal


Virtex-5 PCIe block plus User Guide (UG341) describes only "000b" encoding for cfg_interrupt_mmenable signal. This answer record contains the description of other encoding values for this cfg_interrupt_mmenable signal.


For encoding values other than "000b", please refer to Message Control for MSI of the PCI Local BUS SPECIFICATION, REV. 3.0.

Encoding # of Vectors Allocated
000 1
001 2
010 4
011 8
100 16
101 32
110 Reserved
111 Reserved

Revision History:

4/3/2012 - Initial Release

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
34536 Xilinx Solution Center for PCI Express N/A N/A
AR# 47109
Date 08/30/2013
Status Active
Type General Article
  • Virtex-5
  • Virtex-5 Endpoint Block Plus Wrapper for PCI Express ( PCIe )
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