Signals, Reference schematic ( usb2.0 schematic), Usb otg schematic – IBASE SMARC Evaluation Kit User Manual
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4.2.3. USB
Signals
Pin
Signal Name
I/O
Type
Power Rail
Description
P65
DOWN_USB_PA1+
I/O
USB
Positive differential USB host signal
P66
DOWN_USB_PA1-
I/O
USB
Negative differential USB host signal
P67
H2_USB_OC#1
I/O
OD
3.3V
Over current input signal
Pin
Signal Name
I/O
Type
Power Rail
Description
P69
DOWN_USB_PA2+
I/O
USB
Positive differential USB host signal
P70
DOWN_USB_PA2-
I/O
USB
Negative differential USB host signal
P71
H2_USB_OC#2
I/O
OD
3.3V
Over current input signal
Pin
Signal Name
I/O
Type
Power Rail
Description
P60
USB_OTG_DP
I/O
USB
Positive differential USB host signal
P61
USB_OTG_DN
I/O
USB
Negative differential USB host signal
P62
USB_OTG_OC#
I/O
OD
3.3V
Over current input signal
P63
USB_OTG_VBUS
O
SATA
5V
SATA transmit data negative
P64
USB_OTG_ID
I
SATA
3.3V
SATA receive data positive
Reference Schematic ( USB2.0 schematic)
USB OTG schematic
USB2_CN_DP
USB2_CN_DN
+5V_VBUS1
+5V_VBUS2
USB2_CN_DP
USB2_CN_DN
DOWN_USB_PA2+
DOWN_USB_PA2-
LM9
ACM2012-900-2P
2
3
1
4
USB2_CN_DP
USB2_CN_DN
USB1
HRS_DF11-8DP-2DSA(08)
2
4
6
8
1
3
5
7
+5V_VBUS1
+
EC6
100UF/16V/6.3X7
USB1_CN_DP
USB1_CN_DN
+
EC7
100UF/16V/6.3X7
ESD6
L12ESDL5V0C6-4/X
1
2
3
4
5
6
USB1_CN_DP
USB1_CN_DN
LM8
ACM2012-900-2P
2
3
1
4
USB1_CN_DN
DOWN_USB_PA1+
DOWN_USB_PA1-
USB1_CN_DP
U18
TPS2051BDBVR
OUT
1
GND
2
OC
3
EN
4
IN
5
Q19
FDN337N
G
D
S
+12V_VCC
GND_CASE_U
ESD5
PGB1010603NR
C127
4.7UF/16V/6
FB20
FB_80 ohm_2A
C136
0.1UF/25V/4
GND_CASE_U
FB21
FB_80 ohm_2A
ESD4
L12ESDL5V0C6-4/X
1
2
3
4
5
6
USB_OTG_DN
13
USB_OTG_VBUS
R133
4.7K/4
+3.3V_VCC
C133
1UF/16V/4
+
TC1
100UF/6.3V/B2
+5_OTG_VCC
Q16
IRLML6401TRPBF
G
D
S
Q17
2N7002
G
D
S
USB_OTG_DP
13
Q20
2N7002
G
D
S
+5V_VCC
USB_OTG_OC#
USB_OTG_ID
13
LM7
ACM2012-900-2P
2
3
1
4
OTG_CN_DP
R109
100/6
C134
0.1UF/10V/4
+5_OTG_VCC
+5_OTG_VCC
R107
4.7K/4
USB_OTG_OC#
USB_OTG_OC#
13
R132
4.7K/4
+3.3V_VCC
USB_OTG_ID
OTG_CN_DN
5V
D-
D+
ID
G
CN21
FOXCONN_UH51543-CS7-7F
1
2
3
4
5
P1
P2
P3
P4
R106
10K/4
+5V_VCC
OTG_CN_DN
OTG_CN_DP
+5V_OTG