Reference Manual

Hardware Reference Manual
Version 1.0 - 51 - eInfochips Confidential
J13.B12
GND
Ground
11
GND_EARTH_USB
EARTH
12
GND_EARTH_USB
EARTH
13
GND_EARTH_USB
EARTH
14
GND_EARTH_USB
EARTH
15
GND_EARTH_USB
EARTH
16
GND_EARTH_USB
EARTH
17
GND_EARTH_USB
EARTH
18
GND_EARTH_USB
EARTH
Table 16: SBC USB3.1 connector (J13) Pinout
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
Net Name
Pin Function
USB1.A1
VCC_USB_HOST1
USB Host_1 5V Supply
USB1.A2
USB_DM_HOST4_CONN
USB Host_4 High Speed Signal Negative
USB1.A3
USB_DP_HOST4_CONN
USB Host_4 High Speed Signal Positive
USB1.A4
GND
Ground
USB1.B1
VCC_USB_HOST2
USB Host_2 5V Supply
USB1.B2
USB_DM_HOST3_CONN
USB Host_3 High Speed Signal Negative
USB1.B3
USB_DP_HOST3_CONN
USB Host_3 High Speed Signal Positive
USB1.B4
GND
Ground