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Ampro Corporation Littleboard 550 manual USB Signals USB0 and USB1, Component Address Binary

Models: Littleboard 550

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Chapter 3

 

Hardware

Table 3-17. SMBus Reserved Addresses

 

 

 

 

 

 

 

Component

Address Binary

 

 

Serial EEPROM (SEEP)

1010,010xb

 

 

SDRAM EPROM

1010,000xb

 

 

Clock Generator (ICS9250)

1101,001xb

 

 

Southbridge (VT82C686B)

0000,000xb (default) Programmable Master

 

 

Thermal Sensor (MAX1617)

0011,0010xb

 

USB Signals (USB0 and USB1)

The LittleBoard 550 contains one root USB hub with four functional USB ports. This connector (Utility 2) provides two of the four USB ports (USB0 and USB1). The hub is USB v.1.1 and Intel Universal HCI v.1.1 compatible.

Features implemented in the USB ports include the following:

•One root hub and two USB ports on this connector

•USB v.1.1 and Intel Universal HCI v.1.1 compatible

•Integrated physical layer transceivers

•Over-current detection status (software) on all four USB ports

•Over-current fuses for all four ports on the LittleBoard 550 board. See Table 2-3.

NOTE

Ampro does not recommend connecting a USB boot device to the

 

LittleBoard 550 through an external hub. Instead, connect the USB

 

boot device directly to the LittleBoard 550. Refer to Chapter 4, BIOS

 

Setup for more information.

 

 

LittleBoard 550

Reference Manual

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Ampro Corporation Littleboard 550 manual USB Signals USB0 and USB1, Component Address Binary, Sdram Eprom
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