Altera Arria V Avalon-MM User Manual
Page 154
Figure A-6: I/O Read Request
I/O Read Request
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 1 0 0 0 0 0 0 0 0 0
TD
EP
0 0 0 0 0 0 0 0 0 0 0 0 0
1
Byte 4
g
a
T
D
I
r
e
t
s
e
u
q
e
R
0 0 0 0
First BE
Byte 8
Address[31:2]
0 0
Byte 12
Reserved
Figure A-7: Message without Data
Message without Data
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 1 1 0
r
2
r
1
r
0
0
TC
0 0 0 0
TD
EP
0 0 0 0 0 0 0 0 0 0 0 0 0 0
Byte 4
e
d
o
C
e
g
a
s
s
e
M
g
a
T
D
I
r
e
t
s
e
u
q
e
R
Byte 8
Vendor defined or all zeros
Byte 12
Vendor defined or all zeros
Note:
(1) Not supported in Avalon-MM.
Figure A-8: Completion without Data
Completion without Data
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 1 0 1 0 0
TC
0 0 0 0
TD
EP
Att
r
0 0
Length
Byte 4
t
n
u
o
C
e
t
y
B
B
s
u
t
a
t
S
D
I
r
e
t
e
l
p
m
o
C
Byte 8
g
a
T
D
I
r
e
t
s
e
u
q
e
R
0
Lower Address
Byte 12
Reserved
UG-01105_avmm
2014.12.15
Transaction Layer Packet (TLP) Header Formats
A-3
Transaction Layer Packet (TLP) Header Formats
Altera Corporation