EVB-USB2240-IND Evaluation Board Revision A
1 Overview
EVB-USB2240-IND Revision A Evaluation Board for the SMSC USB22240 USB2.0 Compatible Media Controller. The goal of the EVB-USB2240-IND user guide is provide an application platform for developers in the following Applications: Flash Media Card Reader/Writer, Printers, Desktop and Mobile PCs, Consumer A/V, and Media Players/Viewers. The EVB-USB2240-IND demonstrates driver compatibility with Microsoft Vista, Windows XP, Windows ME, Windows 2K SP4, Apple OSx, and Linux Mass Storage Class Drivers.
1.1Features
Features the USB2240 in a 36 Pin QFN RoHS compliant package.
Supports these Media Types: SmartMedia (SM), Secure Digital (SD), Memory Stick (MS) 4 & 8 bit, and MultiMedia Card (MMC) 4 & 8 bit interfaces.
Support for simultaneous operation of all above devices.
Low Cost 2-Layer Space Saving Design
Supports EEPROM memory upgrade via USB bus.
Operates from a single voltage (+5.0V, regulated) 'wall wart' external power supply or bus-powered operation.
Internal FET Power Switching for All Media Types.
Activity LED indicator.
Single Crystal Clock Source
Single Onboard +3.3V Regulator.
Optional +3.3V power LED indicator.
Optional Card power LED indicator.
Optional serial EEPROM for configuration in a socket for easy programming
1.2General Description
The EVB-USB2240-IND is a demonstration and evaluation platform featuring the USB2240 Media Controller in a 2-layer RoHS compliant PCB. It is designed to support internal default settings and an external EEPROM for customized functionality. The EVB-USB2240-IND can operate in self-powered mode with an external power supply or in bus-powered mode getting its +5V source from the upstream connector. Default configuration can be changed by adding an EEPROM into the provided socket. Footprints are available for optional features such as LED indicators. Figure 1.1 shows the top and bottom level silk screen and copper layer. The EVB-USB2240-IND is compatible with Microsoft Vista, Windows XP, Windows ME, Windows 2k SP4, Apple OSx and Linux Mass Storage Class Drivers.
