Altera Arria 10 Avalon-MM DMA - Manual (Page 31)

Parameter Value Default Value Description
Note:
1. Throughout this user guide, the terms word, dword and qword have the same meaning that they have
in the PCI Express Base Specification. A word is 16 bits, a dword is 32 bits, and a qword is 64 bits.
Link Capabilities
Table 3-7: Link Capabilities
Parameter Value Description
Link port
number
0x01 Sets the read-only value of the port number field in the
Link
Capabilities
register.
Slot clock
configuration
On/Off When On, indicates that the Endpoint or Root Port uses the
same physical reference clock that the system provides on the
connector. When Off, the IP core uses an independent clock
regardless of the presence of a reference clock on the
connector.
MSI and MSI-X Capabilities
Table 3-8: MSI and MSI-X Capabilities
Parameter Value Description
MSI messages
requested
1, 2, 4, 8, 16, 32 Specifies the number of messages the Application Layer can
request. Sets the value of the
Multiple Message Capable
field of the
Message Control
register, 0x050[31:16].
MSI-X Capabilities
Implement MSI-
X
On/Off When On, enables the MSI-X functionality.
Bit Range
Table size [10:0] System software reads this field to determine the MSI-X Table
size <n>, which is encoded as <n–1>. For example, a returned
value of 2047 indicates a table size of 2048. This field is read-
only. Legal range is 0–2047 (2 11 ).
Address offset: 0x068[26:16]
UG-01145_avmm_dma
2015.05.14
Link Capabilities 3-11
Parameter Settings Altera Corporation
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