Altera Arria V Avalon-ST - Manual (Page 4)

Feature Avalon‑ST Interface Avalon‑MM Interface Avalon‑MM DMA
Gen1 ×1, ×2, ×4, ×8 ×1, ×2, ×4, ×8 x8
Gen2 ×1, ×2, ×4 ×1, ×2, ×4 ×4
64-bit Application
Layer interface
Supported Supported Not supported
128-bit Application
Layer interface
Supported Supported Supported
Transaction Layer
Packet type (TLP)
• Memory Read Request
• Memory Read Request-
Locked
• Memory Write Request
• I/O Read Request
• I/O Write Request
• Configuration Read
Request (Root Port)
• Configuration Write
Request (Root Port)
• Message Request
• Message Request with
Data Payload
• Completion Message
• Completion with Data
• Completion for Locked
Read without Data
• Memory Read Request
• Memory Write Request
• I/O Read Request—
Root Port only
• I/O Write Request—
Root Port only
• Configuration Read
Request (Root Port)
• Configuration Write
Request (Root Port)
• Completion Message
• Completion with Data
• Memory Read Request
(single dword)
• Memory Write Request
(single dword)
• Memory Read
Request
• Memory Write
Request
• Completion
Message
• Completion with
Data
Payload size 128–512 bytes 128 or 256 bytes 128 or 256 bytes
Number of tags
supported for non-
posted requests
32 or 64 16 16
62.5 MHz clock Supported Supported Not Supported
Multi-function
Supports up to 8 functions Supports single function
only
Supports single
function only
Out-of-order
completions
(transparent to the
Application Layer)
Not supported Supported Supported
2014.12.15
Features 1-3
Datasheet Altera Corporation
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