UM1065
Schematics
Doc ID 018640 Rev 4
Figure 21.
Ethernet
1
1
2
2
3
3
4
4
D
D
C
C
B
B
A
A
STMicroelectronics
T
itle:
N
u
m
b
er
:
R
e
v
:
S
heet
o
f
C.
1
(P
C
B
.S
C
H
)
Da
te
:
8/
1
5
/2
0
1
1
MB
7
8
6
5
2
0
ST
M
32
20-21-45-46
G-EVAL
Ethernet
MI
I_
T
X
D
0
M
II
_
T
X
_EN
M
II
_
T
X
_CLK
MI
I_
R
X
D
0
MI
I_
R
X
_
E
R
M
II_
R
X
_
D
V
/R
M
II_
C
R
S
D
V
M
II
_
RX
_
C
LK
/RMI
I_
R
E
F
_
CLK
M
II
_CO
L
MI
I_
C
R
S
MI
I_
M
D
C
MI
I_
M
D
IO
X1
25MH
z
(w
ith
sock
e
t)
C1
4
22p
F
C1
5
22p
F
1
2
3
JP
5
MCO
EN
1
GN
D
2
OU
T
3
VC
C
4
U3
S
M7745H
E
V
-50.
0
M
(do
not
fit)
+3V
3
R2
6
10K
RES
E
T
#
R2
4
0
JP
8
R4
0
2K
2
+3V
3
+3V
3
R2
5
4.
87K
R3
0
2
K
2
+3V
3
R3
3
2
K
2
C2
1
0.
1uF
C1
7
0.
1uF
C1
9
0.
1uF
C1
3
10u
F
R4
2
2K
2
MI
I_
T
X
D
1
MI
I_
T
X
D
2
MI
I_
T
X
D
3
MI
I_
R
X
D
1
MI
I_
R
X
D
2
MI
I_
R
X
D
3
T
X
_CLK
1
TX
_
E
N
2
TX
D
_
0
3
TX
D
_
1
4
TX
D
_
2
5
T
X
D
_3/S
N
I_
M
O
D
E
6
PW
R
_
D
O
W
N
/I
N
T
7
NC
8
NC
9
NC
10
NC
11
NC
12
RD
-
13
RD
+
14
AG
N
D
15
TD
-
16
TD
+
17
PF
B
IN
1
18
AG
N
D
19
NC
20
NC
21
AV
D
D
3
3
22
PF
B
O
U
T
23
RBI
A
S
24
25MH
z_O
U
T
25
LE
D
_
A
C
T
/CO
L
/A
N
_EN
26
LED
_
S
P
EED
/A
N
1
27
L
E
D
_
L
I
NK
/A
N0
28
RES
E
T
_
N
29
MD
IO
30
MD
C
31
IO
V
D
D
3
3
32
X2
33
X1
34
IO
G
N
D
35
DG
N
D
36
PF
B
IN
2
37
RX
_
C
LK
38
RX
_
D
V
/MI
I_
MO
D
E
39
CRS
/CRS
_
D
V
/LE
D
_
CF
G
40
RX
_
E
R/MD
IX
_
EN
41
CO
L
/P
H
Y
A
D
0
42
RX
D
_
0/
P
H
Y
A
D
1
43
RX
D
_
1/
P
H
Y
A
D
2
44
RX
D
_
2/
P
H
Y
A
D
3
45
RX
D
_
3/
P
H
Y
A
D
4
46
IO
G
N
D
47
IO
V
D
D
3
3
48
U5
D
P
8384
8
C
V
V
+3V
3
C1
6
0.
1uF
C2
7
0.
1uF
C2
0
0.
1uF
+3V
3
R4
3
1.
5K
1
2
3
JP
6
TP
1
25MH
z
TD
+
1
TC
T
4
TD
-
2
RD
+
3
RCT
5
RD
-
6
NC
7
CH
S
G
N
D
8
LED
(g
re
e
n
)_
A
9
LED
(g
re
e
n
)_
K
10
L
E
D
(Y
ellow
)_
A
12
L
E
D
(Y
ellow
)_
K
11
S
hield
13
S
hield
14
CN
7
J0011
D
2
1B
R2
2
240
R1
240
+3V
3
C7
0.
1uF
C6
0.
1uF
+3V
3
MI
I_
IN
T
R4
1
0
R4
4
0
S
econd
sou
rc
e
:S
I-6011
6
-F
RS
5
51
RS
3
51
RS
6
51
+3V
3
U
n
used
in
RMI
I
m
o
d
e
RS
1
2K
2
RS
4
51
RS
2
51
PI
1
0
PC
1
PC
2
PC
3
PA
1
PA
2
PH
2
PH
3
PA
7
PC
4
PC
5
PG
1
1
PH
6
PH
7
PG
1
3
PG
1
4
P
B14
PB
8
PA
8
SB
1
R2
08
51
R2
12
150
S
T
M
324x
G
-E
V
A
L
S
T
M
322x
G
-E
V
A
L
SB
1
R
2
1
2
Close
O
pen
N
o
t
fitted
150
o
h
m
Bo
ar
d
c
o
n
fi
g
u
ra
tion