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Figure 9-2: USB module connection schematic
X1
8M
Hz
C2
22pF
C1
22pF
X3
32.7
68kHz
C31 22pF
C30 22pF
CLKO
CLKI
USB-DET
USBDP
USBDM
SOSCO
SOSCI
USB-ID-RF3
VCC-3.3
Vcap
E9
10uF
VDD
16
RE6
4
RE5
3
RB0
25
RB1
24
RB2
23
RB3
22
RB4
21
RB5
20
RE7
5
RG6/SCK2
10
RG7/SDI2
11
VSS
15
RG9
14
RG8/SDO2
12
MCLR
13
RG15
1
VDD
2
RC1
6
RC2
7
RC3
8
RC4
9
RA0/TMS
17
RE8/INT1
18
RE9/INT2
19
RB11
35
AVD
D
30
RB9
33
RB8
32
RB13
42
RB12
41
RB15
44
RB14
43
RF4
49
RF5
50
VSS
36
RB6
26
AVS
S
31
RB10
34
RB7
27
VDD
37
RA9
28
RA10/VR
EF+
29
RA1
38
RF1
3
39
RF1
2
40
RD14
47
RD15
48
VSS
45
VDD
46
RC14
74
RC13
73
RD0
72
RD11
71
RD10
70
VDD
62
VSS
65
D+/RG2
57
RF3
51
U1RX/RF2
52
VUSB
55
D-/RG3
56
OSC2
64
RD8
68
OSC1
63
RD9
69
VSS
75
RA14
66
RA15
67
RA4
60
RA5
61
SCL2/RA2
58
SDA2/RA3
59
U1TX/RF8
53
VBUS
54
RD2
77
RF0
87
RD7
84
RD6
83
RD5
82
RD4
81
RE4
100
ENVR
EG
86
Vcap/VDDcore
85
RD1
76
RE0
93
RD3
78
RF1
88
RE1
94
RE2
98
RE3
99
RG
13
97
RG
12
96
RG
14
95
RA7
92
RA6
91
RG
0
90
RG
1
89
RD13
80
RD12
79
U1
PIC32MX460F512L
USBDP
USBDM
VCC-USB
C28
10nF
FP2
FERRITE
VBUS
1
D-
2
D+
3
ID
4
GND
5
CN3
USB MINIB
USB-ID
USB-DET
R14
100
USB-ID-RF3
USB-ID
RF3
1
2
3
J3
SMD JUMPER
C5
100nF
C6
100nF
C7
100nF
C8
100nF
VCC-3.3 VCC-3.3
VCC-3.3 VCC-3.3
VCC-3.3
C25
100nF
VCC-3.3
E8
10uF
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