Altera Arria V Avalon-ST - Manual (Page 145)

PCI Express Base Specification 2.1. Examples of settings that require arbitration include the following
features:
• Link Control settings
• Error detection and logging for non-function-specific errors
• Error message collapsing
• Maximum payload size (All functions use the largest specified maximum payload setting.)
Note: Altera strongly recommends that your software configure the Maximum payload size (in the
Device Control
register) with the same value across all functions.
• Interrupt message collapsing
You can access the Configuration Space Registers for the active function using the LMI interface. In Root
Port mode, you can also access the Configuration Space Registers using a Configuration Type TLP. Refer
to Type 0 Configuration Space Registers for more information about the Configuration Space Registers.
Related Information
Type 0 Configuration Space Registers on page 5-5
9-12 Multi-Function Support
2014.12.15
Altera Corporation IP Core Architecture
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