Altera V-Series Avalon-MM DMA Manual de usuario Pagina 130

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Transaction Layer Packet (TLP) Header Formats
A
2014.12.18
UG-01154
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The following figures show the header format for TLPs without a data payload.
Figure A-1: Memory Read Request, 32-Bit Addressing
Memory Read Request, 32-Bit Addressing
3+2+1+0+
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Byte 0 0 0 0 0 0 0 0 0 0
TC
0 0 0 0
TD EP Attr
0 0
Length
Byte 4
EB tsriFEB tsaLgaTDI retseuqeR
Byte 8
Address[31:2]
0 0
Byte 12 Reserved
Figure A-2: Memory Read Request, Locked 32-Bit Addressing
Memory Read Request, Locked 32-Bit Addressing
3+2+1+0+
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Byte 0 0 0 0 0 0 0 0 1 0 TC 0 0 0 0 TD EP Attr 0 0 Length
Byte 4
EB tsriFEB tsaLgaTDI retseuqeR
Byte 8
Address[31:2]
0 0
Byte 12 Reserved
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