TechNexion PICO-IMX6, Hardware Manual

Page: 37 / 64

PICO-IMX6 REV. A1. HARDWARE MANUAL
– VER 1.01 – JAN 28 2016
Page 37 of 64
3.10. Universal Serial Bus (USB) Interface
The PICO-IMX6 incorporates a single USB Host controller and an additional USB Host/OTG controller.
Each of the USB controllers provides the following main features:
USB 2.0 Host/OTG Controller

High-Speed/Full-Speed/Low-Speed OTG core

HS/FS/LS UTMI compliant interface

High Speed, Full Speed and Low Speed operation in Host mode (with UTMI transceiver)

High Speed, and Full Speed operation in Peripheral mode (with UTMI transceiver)

Hardware support for OTG signaling, session request protocol, and host negotiation protocol

Up to 8 bidirectional endpoints

Support charger detection
USB 2.0 Host Controller

High-Speed/Full-Speed/Low-Speed Host-Only core

HS/FS/LS UTMI compliant interface
For additional details, please refer to the “Universal Serial Bus Controller (USB)” chapter of the “i.MX6
Refe
rence Manual”.
Table 15 - USB Host Signal Description
PIN
CPU
BALL
CPU PAD NAME Signal V I/O Description
X2_46 F10 USB_H1_DN USB_HOST_DN 3V3 I/O
Universal Serial Bus
differential pair negative
signal
X2_48 E10 USB_H1_DP USB_HOST_DP 3V3 I/O
Universal Serial Bus
differential pair positive
signal
X2_50 D10 USB_H1_VBUS USB_H1_VBUS 5V I/O Universal Serial Bus power
X2_52 P5 GPIO_19 USB_H1_OC 3V3 I
Active low input, to inform
USB overcurrent condition
(low = overcurrent detected)
Table 16 - USB OTG Signal Description
PIN
CPU
BALL
CPU PAD NAME Signal V I/O Description
E1_3 W23 ENET_RX_ER USB_ID 3V3 I/O USB OTG ID Pin
E1_16 A6 USB_OTG_DP USB_OTG_DP USB I/O
Universal Serial Bus
differential pair positive
signal
E1_18 B6 USB_OTG_DN USB_OTG_DN USB I/O
Universal Serial Bus
differential pair negative
signal
E1_19 J20 EIM_D30 FAULT 1V8 I
Over current detect input pin
to monitor USB power over
current
E1_20 E9 USB_OTG_VBUS USB_OTG_VBUS 5V I/O Universal Serial Bus power
E1_21 E23 EIM_D22 USB_OTG_PWR_EN USB O
Universal Serial Bus power
enable
NOTE: While using USB OTG in USB HOST mode. The USB_ID pin should have a pull-down resistor to
GND.