IBASE SMARC-EVK1 - Manual (Page 34)

8 SMARC Evaluation Kit
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