
Chapter : A–3
TLP Packet Format with Data Payload
August 2014 Altera Corporation IP Compiler for PCI Express User Guide
TLP Packet Format with Data Payload
Table A–11 through A–5 show the content for transaction layer packets with a data
payload.
Byte 0 00110
r
2
r
1
r
0
0
TC
0000
TD EP
00000000000000
Byte 4
Requestor ID Tag Message Code
Byte 8 Vendor defined or all zeros
Byte 12
Vendor defined or all zeros
Notes to Table A–8:
(1) Not supported in Avalon-MM.
Table A–8. Message without Data
Table A–9. Completion without Data
+0 +1 +2 +3
76543210765432107 6 54 32107654 3 2 1 0
Byte 0 000010100
TC
0000
TD EP
Att
r
00
Length
Byte 4
Completer ID Status B Byte Count
Byte 8
Requestor ID Tag
0
Lower Address
Byte 12 Reserved
Table A–10. Completion Locked without Data
+0 +1 +2 +3
76543210765432107 6 54 3210 765 43210
Byte 0 000010110
TC
0000
TD EP
Att
r
00
Length
Byte 4
Completer ID Status B Byte Count
Byte 8
Requestor ID Tag
0
Lower Address
Byte 12 Reserved
Table A–11. Memory Write Request, 32-Bit Addressing
+0 +1 +2 +3
76543210765432107 6 54321076543210
Byte 0 010000000
TC
0000
TD EP
Att
r
00
Length
Byte 4
Requestor ID Tag Last BE First BE
Byte 8
Address[31:2]
00
Byte 12 Reserved
Table A–12. Memory Write Request, 64-Bit Addressing
+0 +1 +2 +3
76543210765432107 6 5 4321076543210
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