19
LatticeSC PCI Express x4 Evaluation Board
Lattice Semiconductor
User’s Guide
Figure 10. SERDES
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
B_H
D
IN
P1_R
PET
p2
50
B_H
D
IN
N
1_R
PET
n2
50
B_H
D
IN
P2_R
PET
p1
50
B_H
D
IN
N
2_R
PET
n1
50
B_H
D
IN
P3_R
PET
p0
50
B_H
D
IN
P0_R
PET
p3
50
B_H
D
IN
N
3_R
PET
n0
50
B_H
D
IN
N
0_R
PET
n3
50
B_H
D
OU
T
P1_R
50
B_H
D
OU
T
N
1_R
50
B_H
D
OU
T
P2_R
50
B_H
D
OU
T
N
2_R
50
B_H
D
OU
T
P3_R
50
B_H
D
OU
T
N
3_R
50
B_H
D
OU
T
P0_R
50
B_H
D
OU
T
N
0_R
50
PER
p0
PER
n0
PER
p1
PER
n1
PET
p3
PER
p2
PER
n
2
PER
p3
PER
n3
PC
IE_3V3
PET
p0
PET
n0
PET
p1
PET
n1
PET
p2
PET
n2
PET
n3
PC
IE_3V3
3G_361_I
N
N
0
3G_361_I
N
N
1
3G_361_I
N
P1
3G_361_I
N
N
2
3G_361_I
N
P2
3G_361_I
N
N
3
3G_361_I
N
P3
3G_361_OU
T
N
0
3G_361_OU
T
N
1
3G_361_OU
T
P1
3G_361_OU
T
N
2
3G_361_OU
T
P2
3G_361_OU
T
N
3
3G_361_OU
T
P3
3G_361_OU
T
P0
3G_361_I
N
P0
A_H
D
IN
P1_L
SM
PT
E_360_I
N
P1
SM
PT
E_360_I
N
N
1
A
_
HDINN1
_
L
A_H
D
OU
T
P1_L
A_H
D
OU
T
N
1_L
A_R
EF
C
LKP_L
PC
IE_C
LKN
PC
IE_C
LKP
3G_361_I
N
N
0
3G_361_I
N
N
1
3G_361_I
N
P1
3G_361_I
N
N
2
3G_361_I
N
P2
3G_361_I
N
N
3
3G_361_I
N
P3
3G_361_I
N
P0
3G_361_OU
T
N
0
3G_361_OU
T
N
1
3G_361_OU
T
P1
3G_361_OU
T
N
2
3G_361_OU
T
P2
3G_361_OU
T
N
3
3G_361_OU
T
P3
3G_361_OU
T
P0
A
_
HDINN1
_
L
A_H
D
IN
P1_L
PER
p3
PER
n3
PER
p2
PER
n2
PER
p1
PER
n1
PER
p0
PER
n0
B_R
EF
C
LKP_L
B
_
RE
FCL
K
N_
L
A_R
EF
C
LKN
_L
A_H
D
OU
T
N
1_L
A_H
D
OU
T
P1_L
B_H
D
IN
P0_R
B_H
D
IN
N
0_R
B_H
D
IN
P1_R
B_H
D
IN
N
1_R
B_H
D
IN
P2_R
B_H
D
IN
N
2_R
B_H
D
IN
P3_R
B_H
D
IN
N
3_R
B_H
D
OU
T
P0_R
B_H
D
OU
T
N
0_R
B_H
D
OU
T
P1_R
B_H
D
OU
T
N
1_R
B_H
D
OU
T
P2_R
B_H
D
OU
T
N
2_R
B_H
D
OU
T
N
3_R
B_H
D
OU
T
P3_R
x1
x4
x4
x1
A_R
EF
C
LKP_L
A_R
EF
C
LKN
_L
B
_
RE
FCL
K
N_
L
B_R
EF
C
LKP_L
A
_
RX
RE
FCL
K
_
L
A_RESP_L
A_RESP_R
A_RESP_L
A_RESP_R
LOOPp
LOOPn
A
_
HDINN0
_
L
A_H
D
IN
P0_L
A
_
HDINN3
_
L
A_H
D
IN
P3_L
A_H
D
OU
T
N
0_L
CO
N2
_
HDO
UTN
CO
N2
_
HDO
UTP
A_H
D
OU
T
N
3_L
A_H
D
OU
T
P3_L
A_H
D
IN
P3_L
A_H
D
IN
N
3_L
CO
N1
_
HDO
UTN
CO
N1
_
HDO
UTN
CO
N1
_
HDO
UTP
CO
N1
_
HDO
UTP
A_H
D
OU
T
P0_L
CO
N2
_
HDO
UTN
CO
N2
_
HDO
UTP
A_H
D
OU
T
P3_L
A_H
D
OU
T
N
3_L
2_C
R
EF
C
LK-
2_C
R
EF
C
LK+
A_H
D
IN
P0_L
A_H
D
IN
N
0_L
A_H
D
OU
T
N
0_L
A_H
D
OU
T
P0_L
1_C
R
EF
C
LK-
1_C
R
EF
C
LK+
12_0V
PC
IE_C
LKN
[8
]
PC
IE_C
LKP
[8
]
A_R
EF
C
LKN
_L
[9
]
A_R
EF
C
LKP_L
[9
]
B_R
EF
C
LKP_L
[9]
B_R
EF
C
LKN
_L
[9]
PC
IE_PER
ST
N
[2
]
A
_
RX
RE
FCL
K
_
L
[9
]
2_C
R
EF
C
LK+
[8
]
2_C
R
EF
C
LK-
[8
]
1_C
R
EF
C
LK+
[8
]
1_C
R
EF
C
LK-
[8
]
Ti
tl
e
Siz
e
Projec
t
R
ev
D
at
e:
Sheet
of
SC8
0
X4
PCI
EXPRESS Ca
rd
3.
0
SERDES
C
51
1
Ti
tl
e
Siz
e
Projec
t
R
ev
D
at
e:
Sheet
of
SC8
0
X4
PCI
EXPRESS Ca
rd
3.
0
SERDES
C
51
1
Ti
tl
e
Siz
e
Projec
t
R
ev
D
at
e:
Sheet
of
SC8
0
X4
PCI
EXPRESS Ca
rd
3.
0
SERDES
C
51
1
3G SMAs
VIDEO BNCs
X4 PCIe Board Fingers
B side = Primary Component Side(TOP)
A side = Secondary Component Side(BOTTOM)
PRSNT SELECT
LVDS Ref Clk Terminations
Place close to U1
J9
7
J
U
M
PER
1
J9
7
J
U
M
PER
1
1
2
CO
N2
X
1
P
C
IE
RE
CP
T
CO
N2
X
1
P
C
IE
RE
CP
T
PER
n
0
A1
PER
p
0
A2
RS
V
D
A3
SB_
R
T
N
A4
CRE
F
CLK
-
A5
CRE
F
CLK
+
A6
P
W
R_RT
N
A7
CP
E
RS
T
#
A8
GN
D
A9
GN
D
B1
RS
V
D
B2
CW
A
K
E
#
B3
CP
RS
NT
#
B4
GN
D
B5
PW
R
B6
CP
W
RO
N
B7
PET
n
0
B8
PET
p
0
B9
R1
9
0
4_02K-0603SM
T
R1
9
0
4_02K-0603SM
T
R
222
0R
-0603SM
T
R
222
0R
-0603SM
T
R
223
0R
-0603SM
T
R
223
0R
-0603SM
T
J2
2
R
o
s
enber
ger
32K153-400E3
J2
2
R
o
s
enber
ger
32K153-400E3
1
2
C
109
100N
F
X5R
-0402SM
T
C
109
100N
F
X5R
-0402SM
T
CN1
P
CI E
x
p
re
s
s x4
E
d
g
e
Fi
n
g
e
r Co
n
n
.
CN1
P
CI E
x
p
re
s
s x4
E
d
g
e
Fi
n
g
e
r Co
n
n
.
PR
SN
T
1
#
A1
+1
2
V
A2
+1
2
V
A3
GN
D
A4
JT
A
G
2
A5
JT
A
G
3
A6
JT
A
G
4
A7
JT
A
G
5
A8
+3
.3
V
A9
+3
.3
V
A1
0
PER
S
T
#
A1
1
GN
D
A1
2
RE
F
C
LK
+
A1
3
RE
F
C
LK
-
A1
4
GN
D
A1
5
PER
p
0
A1
6
PER
n
0
A1
7
GN
D
A1
8
RS
V
D
_A
19
A1
9
GN
D
A2
0
PER
p
1
A2
1
PER
n
1
A2
2
GN
D
A2
3
GN
D
A2
4
PER
p
2
A2
5
PER
n
2
A2
6
GN
D
A2
7
GN
D
A2
8
PER
p
3
A2
9
PER
n
3
A3
0
GN
D
A3
1
+1
2
V
B1
+1
2
V
B2
RS
V
D
_B
3
B3
GN
D
B4
SM
C
L
K
B5
SM
D
AT
B6
GN
D
B7
+3
.3
V
B8
JT
A
G
1
B9
3.
3V
aux
B1
0
WA
K
E
#
B1
1
RS
V
D
_B
12
B1
2
GN
D
B1
3
PET
p
0
B1
4
PET
n
0
B1
5
GN
D
B1
6
PR
SN
T
3
#
B1
7
GN
D
B1
8
PET
p
1
B1
9
PET
n
1
B2
0
GN
D
B2
1
GN
D
B2
2
PET
p
2
B2
3
PET
n
2
B2
4
GN
D
B2
5
GN
D
B2
6
PET
p
3
B2
7
PET
n
3
B2
8
GN
D
B2
9
RS
V
D
_B
30
B3
0
PR
SN
T
4
#
B3
1
GN
D
B3
2
RS
V
D
_A
32
A3
2
J1
4
BN
C
-T
rom
pet
e
r/
U
C
BBJ
E
20-7
J1
4
BN
C
-T
rom
pet
e
r/
U
C
BBJ
E
20-7
1
2
J2
3
R
o
s
e
nber
ger
32K153-400E3
J2
3
R
o
s
e
nber
ger
32K153-400E3
1
2
C
103
100N
F
X5R
-0402SM
T
C
103
100N
F
X5R
-0402SM
T
J9
6
H
EAD
ER
2X2
J9
6
H
EAD
ER
2X2
3
4
1
2
J2
6
R
o
s
e
nber
ger
32K153-400E3
J2
6
R
o
s
e
nber
ger
32K153-400E3
1
2
C1
0
8
100N
F
X5R
-0402SM
T
C1
0
8
100N
F
X5R
-0402SM
T
SERDES
LFS
C
-1152BGA
LF
SC
1152BGA
U1
A
SERDES
LFS
C
-1152BGA
LF
SC
1152BGA
U1
A
A
_
HDO
U
T
N
0_L
B3
1
A
_
HDO
UT
N0_R
B4
A
_
HDO
U
T
N
1_L
B3
0
A
_
HDO
UT
N1_R
B5
A
_
HDO
U
T
N
2_L
B2
7
A
_
HDO
UT
N2_R
B8
A
_
HDO
U
T
N
3_L
B2
6
A
_
HDO
UT
N3_R
B9
A_
H
D
O
U
T
P0
_
L
A3
1
A
_
HDO
UT
P
0_R
A4
A_
H
D
O
U
T
P1
_
L
A3
0
A
_
HDO
UT
P
1_R
A5
A_
H
D
O
U
T
P2
_
L
A2
7
A
_
HDO
UT
P
2_R
A8
A_
H
D
O
U
T
P3
_
L
A2
6
A
_
HDO
UT
P
3_R
A9
A_
REF
CLK
N_L
H27
A_
REF
CLK
N_R
H8
A_R
EFC
LKP_
L
G27
A_R
EFC
LKP_
R
G8
ULC_RES
P
H26
URC_RE
SP
H9
RESER
VED1
G26
RESER
VED2
G9
A_
H
D
IN
P3
_
L
A2
5
A_
H
D
IN
P2
_
L
A2
8
A_
H
D
IN
P1
_
L
A2
9
A_
H
D
IN
P0
_
L
A3
2
A_
H
D
IN
N
3
_
L
B2
5
A_
H
D
IN
N
2
_
L
B2
8
A_
H
D
IN
N
1
_
L
B2
9
A_
H
D
IN
N
0
_
L
B3
2
A
_
HDI
NP
3_R
A1
0
A
_
HDI
NP
2_R
A7
A
_
HDI
NP
1_R
A6
A
_
HDI
NP
0_R
A3
A_
H
D
IN
N
3
_
R
B1
0
A_
H
D
IN
N
2
_
R
B7
A_
H
D
IN
N
1
_
R
B6
A_
H
D
IN
N
0
_
R
B3
B_
H
D
IN
P3
_
L
E2
2
B_
H
D
IN
N
3
_
L
F2
2
B_
H
D
IN
P2
_
L
E2
3
B_
H
D
IN
N
2
_
L
F2
3
B_
H
D
IN
P1
_
L
E2
4
B_
H
D
IN
N
1
_
L
F2
4
B_
H
D
IN
P0
_
L
E2
5
B_
H
D
IN
N
0
_
L
F2
5
B_
H
D
O
U
T
P3
_
L
A2
1
B
_
HDO
U
T
N
3_L
B2
1
B_
H
D
O
U
T
P2
_
L
A2
2
B_
H
D
O
U
T
N
2
_
L
B2
2
B_
H
D
O
U
T
P1
_
L
A2
3
B_
H
D
O
U
T
N
1
_
L
B2
3
B_
H
D
O
U
T
P0
_
L
A2
4
B_
H
D
O
U
T
N
0
_
L
B2
4
B_
REF
CLK
N_R
J11
B_R
EFC
LKP_
L
H24
B_R
EFC
LKP_
R
H11
RESER
VED4
J23
RESER
VED6
J12
RESER
VED3
H23
RESER
VED5
H12
B
_
HDI
NN0_R
F1
0
B_
H
D
IN
N
1
_
R
F1
1
B_
H
D
IN
N
2
_
R
F1
2
B
_
HDI
NN3_R
F1
3
B
_
HDI
NP
0_R
E1
0
B
_
HDI
NP
1_R
E1
1
B
_
HDI
NP
2_R
E1
2
B
_
HDI
NP
3_R
E1
3
B
_
HDO
UT
N0_R
B1
1
B
_
HDO
UT
N1_R
B1
2
B
_
HDO
UT
N2_R
B1
3
B
_
HDO
UT
N3_R
B1
4
B
_
HDO
UT
P
0_R
A1
1
B
_
HDO
UT
P
1_R
A1
2
B
_
HDO
UT
P
2_R
A1
3
B
_
HDO
UT
P
3_R
A1
4
B_
REF
CLK
N_L
J24
J2
9
R
o
s
e
nber
ger
32K153-400E3
J2
9
R
o
s
e
nber
ger
32K153-400E3
1
2
J2
7
R
o
s
e
nber
ger
32K153-400E3
J2
7
R
o
s
e
nber
ger
32K153-400E3
1
2
C
107
100N
F
X5R
-0402SM
T
C
107
100N
F
X5R
-0402SM
T
R
224
0R
-0603SM
T
R
224
0R
-0603SM
T
J1
5
R
o
s
enber
ger
32K153-400E3
J1
5
R
o
s
enber
ger
32K153-400E3
1
2
C
105
100N
F
X5R
-0402SM
T
C
105
100N
F
X5R
-0402SM
T
C
520
100N
F
X5R
-0402SM
T
C
520
100N
F
X5R
-0402SM
T
CO
N1
X
1
P
C
IE
RE
CP
T
CO
N1
X
1
P
C
IE
RE
CP
T
PER
n
0
A1
PER
p
0
A2
RS
V
D
A3
SB_
R
T
N
A4
CRE
F
CLK
-
A5
CRE
F
CLK
+
A6
P
W
R_RT
N
A7
C
PER
ST
#
A8
GN
D
A9
GN
D
B1
RS
V
D
B2
CW
A
K
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111
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111
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