E3
10uF
VCC
E4
10uF
VCC
E1
10uF
VCC
E2
10uF
VCC
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
HD2
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
10
0
10
1
10
2
10
3
10
4
HD3
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
HD1
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
HD4
VCC
GND
VC
C
G
N
D
VC
C
G
N
D
GND
VCC
GND
C1
100nF
VCC
C2
100nF
VCC
C3
100nF
VCC
C4
100nF
VCC
C5
100nF
VCC
C6
100nF
VCC
C7
100nF
VCC
O
SC
2
O
SC
1
X1
8MHz
C11 22pF
C10 22pF
X2
32.768KHz
C8 22pF
C9 22pF
O
SC
32
_I
N
O
SC
32
_O
U
T
RG3/DM
RG2/DP
RG3
RG2
J1
J2
2
3
4
5
6
7
11
12
13
14
24
23
22
21
18
17
16
15
8
1
19
9
10
20
VDD2A
LED1
LED2
XTAL2
XTAL1
VDDCR
R
XD
1
R
XD
0
VD
D
IO
R
XE
R
C
R
S_
D
V
M
D
IO
MDC
nINT
RST#
TXEN
TXD0
TXD1
TX
P
R
XP
R
bi
as
R
XN
TX
N
VD
D
1A
LAN8720A
GND
U2
TX
P
TX
N
R
XP
R
XN
R2
12K1
FP1
VCC
LED1
LED2
LED1
LED2
TXD1
TXD0
TXEN
RG7_RST#
REFCLK
R
XD
1
R
XD
0
C
R
S_
D
V
TXD1
TXD0
TXEN
RD11_MDC
RXD1
RXD0
CRS_DV
R
D
8_
M
D
IO
C13
100nF
C12
2.2uF
R3
1K5
VCC
R4
27
R5
27
R6
27
R7
27
R8
27
R9
27
RB12_ETH
RB13_ETH
R
B1
1_
R
XE
R
RG8_ETH
RF0_ETH
RF1_ETH
RD6_ETH
R1
1M
C14
100nF
TXP
TXN
RXP
RXN
X3
25MHz
C16
22pF
C15
22pF
75
74
73
72
71
70
69
68
67
66
64
65
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
9
11
12
4
3
78
77
24
23
18
17
16
15
14
13
5
6
7
8
10
79
80
1
2
22
21
20
19
25
76
PIC32MX795F512L
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
RB11
RB10
RB9
RB8
RB13
RB12
R
E7
R
C
1
R
C
2
R
C
3
R
D
9
R
D
8
R
A
15
D
+
/R
G
2
RB15
RB14
R
F8
VB
U
S
VU
SB
D
-/
R
G
3
VSS
VDD
RA6
RG0
RG1
RE0
RF1
RF0
RD7
RD6
R
E6
R
E5
RE2
RG13
RG12
RG14
RE1
RA7
R
G
8
RA9
R
B2
R
B3
R
B4
R
B5
R
E9
R
E8
R
D
11
R
D
10
R
F2
R
F3
R
G
9
R
G
7
R
G
6
RA1
RE3
RE4
R
G
15
VD
D
RB7
RB6
R
B0
R
B1
RF4
RF5
R
A
14
R
A
5
RD14
RD15
R
A
2
RF13
VDD
R
A
3
VD
D
VDD
R
A
0
VD
D
VS
S
VSS
RF12
R
A
4
VS
S
VCAP/VDDCORE
AVSS
AVDD
RA10
M
C
LR
R
C
4
O
SC
1/
R
C
12
O
SC
2/
R
C
15
R
D
0
RD3
RD1
SO
SC
I/
R
C
13
SO
SC
O
/R
C
14
VS
S
RD2
RD12
RD13
RD4
RD5
U1
VCC
R10
27
REFCLK
RG9_ETH
E5
10uF
R
G
3/
D
M
R
G
2/
D
P
R
A
2
R
A
3
R
A
4
R
A
5
R
A
14
R
A
15
R
D
0
R
D
9
R
D
10
RB12_ETH
RB13_ETH
R
G
8_
ET
H
RF0_ETH
RF1_ETH
RD6_ETH
R
G
9_
ET
H
R
G
7_
R
ST
#
R
D
11
_M
D
C
R
D
8_
M
D
IO
RB11_RXER
RB6
RB7
RA9
RA10
RB8
RB9
RB10
RA1
RF13
RF12
RB14
RB15
RD14
RF4
RF5
R
F3
RE4
RE3
RE2
RG13
RG12
RG14
RE1
RE0
RA7
RA6
RG0
RG1
RD7
RD5
RD4
Vcap
RD13
RD12
RD3
RD2
RD1
R
G
6
R
C
4
R
C
3
R
C
2
R
C
1
R
E7
R
E6
R
E5
R
G
15
R
A
0
R
E8
R
E9
R
B5
R
B4
R
B3
R
B2
R
B1
R
B0
M
C
LR
#
RB6
RB7
RA9
RA10
RB8
RB9
RB10
RA1
RF13
RF12
RB14
RB15
RD14
RF4
RF5
R
G
6
R
C
4
R
C
3
R
C
2
R
C
1
R
E7
R
E6
R
E5
R
G
15
R
A
0
R
E8
R
E9
R
B5
R
B4
R
B3
R
B2
R
B1
R
B0
M
C
LR
#
RE4
RE3
RE2
RG13
RG12
RG14
RE1
RE0
RA7
RA6
RG0
RG1
RD7
RD5
RD4
RD13
RD12
RD3
RD2
RD1
U
SB
-V
BU
S
USB-D_N
USB-D_P
VC
C
G
N
D
VC
C
G
N
D
NC
R
G
3
R
G
2
M
C
U
_M
O
SI
M
C
U
_M
IS
O
MC
U
_S
C
K
R
A
2
R
A
3
R
A
4
R
A
5
R
A
14
R
A
15
R
D
0
R
D
9
R
D
10
R
F3
NC
U
SB
-D
_N
U
SB
-D
_P
U
SB
-V
BU
S
M
C
U
_M
O
SI
M
C
U
_M
IS
O
MCU_SCK
Figure 2: MCU card schematic
page 3
v7
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