November 2008

Rev 2

1/13

UM0212

User manual

STOTG04 USB OTG full-speed

transceiver demonstration board

Introduction

This manual explains how to use and take full advantage of the STOTG04 universal serial

bus (USB) on-the-go (OTG) full-speed transceiver demonstration board, which is designed

to help users evaluate their USB OTG applications. The PC board (PCB) connections make

it possible to test the STOTG04 transceiver while it is connected to the USB OTG controller.

The STOTG04 is fully compliant with the USB v2.0 specification and the on-the-go

supplement to this specification (see http://www.usb.org for details). It provides a complete

physical layer (PHY) solution for any USB OTG device. When the STOTG04 is connected to

a USB OTG controller, it is ideal for use with several mobile applications (such as cell

phones, digital cameras, printers and PDAs).

The STOTG04 transceiver is controlled by the "USB OTG Demo" software that runs on

Microsoft Windows operating systems. This software enables designers to configure and

monitor the transceiver’s internal registers.

Figure 1.

STOTG04 demonstration board

www.st.com