Figure 18.
Ethernet
MDC
31
MDIO
30
TX_CLK
1
TX_EN
2
TXD_0
3
TXD_1
4
TXD_2
5
TXD_3/SNI_MODE
6
RX_CLK
38
RX_DV/MII_MODE
39
RX_ER/MDIX_EN
41
RXD_0/PHYAD1
43
RXD_1/PHYAD2
44
RXD_2/PHYAD3
45
RXD_3/PHYAD4
46
CRS/CRS_DV/LED_CFG
40
COL/PHYAD0
42
X1
34
X2
33
25MHz_OUT
25
LED_LINK/AN0
28
LED_SPEED/AN1
27
LED_ACT/COL/AN_EN
26
RESET_N
29
PWR_DOWN/INT
7
TD-
16
TD+
17
RD-
13
RD+
14
RBIAS
24
PFBOUT
23
PFBIN1
18
PFBIN2
37
RESERVED
8
RESERVED
9
RESERVED
10
RESERVED
11
RESERVED
12
RESERVED
20
RESERVED
21
IOVDD33
32
IOVDD33
48
IOGND
35
IOGND
47
DGND
36
AVDD33
22
AGND
15
AGND
19
U4
DP83848CVV
Not Assembled
TP11
25MHz
GND
R53
2,2kΩ
R52
2,2kΩ
X2
X1
R37
22Ω
R38
22Ω
R39
22Ω
R40
22Ω
TXD_0
TXD_1
TXD_2
TXD_3
ETH_TXD_0
ETH_TXD_1
ETH_TXD_2
ETH_TXD_3
R49
22Ω
R50
22Ω
R51
22Ω
R54
22Ω
RX_0__PAD1
ETH_RXD_0
ETH_RXD_1
ETH_RXD_2
ETH_RXD_3
R45
22Ω
COL_PAD0
ETH_COL
R34
0Ω
PWR_DWN_INT
RII
RII
MII
MII
MII
MII
R41
22Ω
TX_EN
ETH_TX_EN
RX_1__PAD2
RX_2__PAD3
RX_3__PAD4
MII
MII
MII
MII
RII
RII
R36
22Ω
TX_CLK
ETH_TX_CLK
MII
R42
0Ω
R43
0Ω
MDIO
ETH_MDIO
MDC
ETH_MDC
R27
1,5kΩ
3V3_ETH
R55
22Ω
RX_CLK
ETH_RX_CLK
MII
R35
0Ω
RESET
R47
22Ω
R48
22Ω
RX_ER
ETH_RX_ER
ETH_RX_DV
RX_DV
R46
22Ω
ETH_CRS
CRS
R26
330Ω
R29
49,
9Ω
R30
49,
9Ω
C
54
10
0n
F/
50
V
GND
C
55
10
0n
F/
50
V
GND
GND
R25
330Ω
LD3
R
ed
LD1
Y
el
lo
w
R20
220Ω
R21
220Ω
R
24
2,
2k
Ω
R
23
2,
2k
Ω
C56
100nF/50V
C57
100nF/50V
C58
10uF/16V
C59
100nF/50V
GND
R44
4,87kΩ
GND
LD2
G
re
en
R19
220Ω
R
22
2,
2k
Ω
Not Assembled
R33
4,7kΩ
GND
R31
49,
9Ω
R32
49,
9Ω
ETH_PWR
Not Assembled
TP10
ETH_TX_CLK
Not Assembled
TP12
ETH_RX_CLK
E
T
H
_
R
X
D
at
a
E
T
H
_
T
X
D
at
a
TD_P
TD_N
RD_P
RD_N
100ohm
100ohm
C
60
10
uF
/1
6V
C
61
10
0n
F
/5
0V
C
62
10
0n
F
/5
0V
GNDGNDGND
3V3
GND
GND
GND
GND
2x22 male pin array or Molex 70246-4402
R
11
0
2.
2k
Ω
SB17
Closed
SB18
Open
C130
100nF/50V
C131
100nF/50V
SB19
Closed
SB20
Closed
SB22
Open
SB23
Open
SB21
Open
LED_ACT
LED_LINK
LED_SPEED
LED_ACT
LED_LINK
LED_SPEED
R
11
1
2.
2k
Ω
R
11
2
2.
2k
Ω
R
11
3
2.
2k
Ω
R
11
4
2.
2k
Ω
R
11
5
2.
2k
Ω
R
11
6
2.
2k
Ω
R
11
7
2.
2k
Ω
R
11
8
2.
2k
Ω
R
11
9
2.
2k
Ω
N
ot
A
ss
em
bl
ed
R
12
0
2.
2k
Ω
R
12
1
2.
2k
Ω
JP50
Closed
3V3
3V3_ETH
3V3_ETH
3V3_ETH
C132
10uF/16V
C133
100nF/50V
GND
GND
3V3_ETH
GND
3V3_ETH
3V3_ETH
3V3_ETH
3V3_ETH
ETH_ SerialMgmt
Interface
3V3
SB5
Open
GND
SB6
Closed
C64
8pF/16V
C63
8pF/16V
SB7
Closed
X2
X1
1
2
P2
Header 2
ExtOsc
GND
1
3
GND
2
GND
4
X2
NX3225SA-25.000M-STD-CSR-3
GND
GND
TD-
TD+
CT
CT
RD+
RD-
CHS GND
CHS GND
K_LED G
K_LED Y
A_LED Y
A_LED G
GND
3V3_ETH
Not Assembled
R28
4,7kΩ
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
10
11
12
13
14
Green
Yellow
J3
EDAC A63-113-331P431
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
JP5
HEADER 22X2
UM2462
-
Rev 3
page 18/25
UM2462
Schematics
