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2.3 USB HOST (P2, P3)
EM3288 provides 3x USB2.0 Host. One is a single USB (P2), and the other is a double-USB (P3). The
3-ch USB HOST interfaces are extended by AU6256 which is a fully compliant with the USB 2.0 hub
specification and is designed to work with USB host as a high-speed hub. It is used to connect USB
mouse, U disk, USB camera, and other USB devices, supports hot-plug.
Feature
* Compatible with USB Host2.0 specification
* Supports high-speed (480Mbps), full-speed (12Mbps) and low-speed (1.5Mbps) mode
* Supports automatic switching between bus- and self-powered modes
* Provides 16 host mode channels
* Support periodic out channel in host mode
Single-Host (P2)
Pin
Signal
Description
Pin
Signal
Description
1
VCC_USB
USB Power. DC 5V
2
USB_DM2
USB data-
3
USB_DP2
USB Data+
4
GND
Ground
5
GND
Ground
6
GND
Ground
7
GND
Ground
Double- Host (P3)
Pin
Signal
Description
Pin
Signal
Description
1
VCC_USB
USB Power. DC 5V
2
USB_DM4
USB data-
3
USB_DP4
USB Data+
4
GND
Ground
5
VCC_USB
USB Power. DC 5V
6
USB_DM3
USB data-