Figure 15 - Io Card Usb Host1 And Host2 Connections To Usb Stack (Usb1) - Arrow einfochips eragon 660 Hardware Referance Manual

Hardware Reference Manual
J13.B12
11
12
13
14
15
16
17
18
IO card has USB 2.0 hub and Hub has 4 downstream port as mentioned below.

Port 1: Downstream Port 1 is directly connected to M.2 (4G LTE) connector..

Port 2: Downstream Port 2 is directly connected to Ethernet MAC.(USB to Ethernet)

Port 3 and Port 4: These both Ports comes on USB1 (Dual row stack connector). Any USB 2.0
device can be connected to these hosts.
Figure 15 – IO Card USB Host1 and Host2 connections to USB Stack (USB1)
Pinout Specification for the J33 are below,
Pin Number
USB1.A1
USB1.A2
USB1.A3
USB1.A4
USB1.B1
USB1.B2
USB1.B3
USB1.B4
Version 1.0
GND
GND_EARTH_USB
GND_EARTH_USB
GND_EARTH_USB
GND_EARTH_USB
GND_EARTH_USB
GND_EARTH_USB
GND_EARTH_USB
GND_EARTH_USB
Table 16: SBC USB3.1 connector (J13) Pinout
Net Name
VCC_USB_HOST1
USB_DM_HOST4_CONN
USB_DP_HOST4_CONN
GND
VCC_USB_HOST2
USB_DM_HOST3_CONN
USB_DP_HOST3_CONN
GND
Ground
EARTH
EARTH
EARTH
EARTH
EARTH
EARTH
EARTH
EARTH
Pin Function
USB Host_1 5V Supply
USB Host_4 High Speed Signal Negative
USB Host_4 High Speed Signal Positive
Ground
USB Host_2 5V Supply
USB Host_3 High Speed Signal Negative
USB Host_3 High Speed Signal Positive
Ground
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