User`s guide

8 KTC5520/EATX
www.kontron.com
• Advanced Host Controller Interface
• Intel Matrix Storage Technology
• Low Pin Count (LPC) Interface
• Serial Peripheral Interface
• DMA Controller, Timer/Counters, Interrupt Controller
• Universal Serial Bus (USB)
•GPIOs
• Enhanced Power Management
• System Management Bus 2.0 (SMBus)
2.3 USB 2.0 Interfaces
The board embeds a USB controller. This controller is compliant to USB 2.0. It provides four USB ports on the
Rear I/O Bracket. Those ports can be used for external storage and for booting
USB features include:
• Capability to daisy chain as many as 127 devices per interface
• Fast bi-directional
• Isochronous/asynchronous interface
• 480 Mbs transfer rate
• Standardization of peripheral interfaces into a single format
• Retro compatible with USB 1.1 devices
USB supports Plug and Play and hot-swapping operations (OS level). These features allows USB devices to be
automatically attached, configured and detached, without reboot or running setup.
Table 2-1: USB Rear Panel I/O Connector Pinout
Pin Signal
1 VCC
2 DATA-
3 DATA+
4 GND