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FM680 User Manual
r1.7
FM680
Page 7 of 32
Virtex-5
(FPGA A)
2
2
54
8
8
GPIO
Only on LX550T
and SX475T
Virtex-6
(FPGA B)
GPIO
GPIO
GPIO
CC
CC
GPIO
GPIO
GPIO
GPIO
Figure 2: Inter-FPGA Interface
By default Abaco delivers a reference design that uses the interfpga bus to allow high speed
data transfer and command distribution between the PCIexpress interface in the FPGA A
and the FPGA B.
The standard reference design does not implement the PN4 connection since those
connections will depend on the user specific application. The user is free to modify the
reference design and add specific features in FPGA A and FPGA B.
The connections between the FPGA A and FPGA B are described in the following table.
Table 2: interFPGA connections
net name
FPGA A
bank
FPGA A
IO voltage
FPGA A
ball
FPGA B
bank
FPGA B
IO voltage
FPGA B
ball
INTER_FPGA0
1 BLAST0_VIO
A7
34 BLAST0_VIO
AU13
INTER_FPGA1
1 BLAST0_VIO
A6
34 BLAST0_VIO
AR13
INTER_FPGA2
1 BLAST0_VIO
E9
34 BLAST0_VIO
AP13
INTER_FPGA3
1 BLAST0_VIO
D8
34 BLAST0_VIO
AN13
INTER_FPGA4
1 BLAST0_VIO
D10
34 BLAST0_VIO
AM13
INTER_FPGA5
1 BLAST0_VIO
D9
33 BLAST0_VIO
AK14
INTER_FPGA6
1 BLAST0_VIO
C8
33 BLAST0_VIO
AL14
INTER_FPGA7
1 BLAST0_VIO
C7
33 BLAST0_VIO
AM14
INTER_FPGA8
1 BLAST0_VIO
B9
34 BLAST0_VIO
AN14
INTER_FPGA9
1 BLAST0_VIO
F8
34 BLAST0_VIO
AR14
INTER_FPGA10
1 BLAST0_VIO
B6
34 BLAST0_VIO
AT14
INTER_FPGA11
1 BLAST0_VIO
C6
34 BLAST0_VIO
AV14
INTER_FPGA12
1 BLAST0_VIO
A8
34 BLAST0_VIO
BA14
INTER_FPGA13
1 BLAST0_VIO
F7
34 BLAST0_VIO
BB14
INTER_FPGA14
1 BLAST0_VIO
A9
34 BLAST0_VIO
BA15
INTER_FPGA15
1 BLAST0_VIO
D7
34 BLAST0_VIO
AY15
INTER_FPGA16
1 BLAST0_VIO
E7
34 BLAST0_VIO
AW15
INTER_FPGA17
1 BLAST0_VIO
B10
34 BLAST0_VIO
AV15
INTER_FPGA18
1 BLAST0_VIO
C10
34 BLAST0_VIO
AR15
INTER_FPGA19
11 BLAST0_VIO
D13
34 BLAST0_VIO
AP15
INTER_FPGA20
11 BLAST0_VIO
D14
33 BLAST0_VIO
AN15
INTER_FPGA21
11 BLAST0_VIO
E15
33 BLAST0_VIO
AL15
INTER_FPGA22
11 BLAST0_VIO
D15
33 BLAST0_VIO
AK15