Datasheet

MCP2221 BREAKOUT MODULE

USER’S GUIDE

 2014 Microchip Technology Inc. DS50002282A-page 13

Chapter 2. Installation and Operation

2.1 INTRODUCTION

The MCP2221 Breakout Module is designed to demonstrate the device as a

USB-to-UART/I

C/SMBus protocol converter solution.

The package is comprised of a single board and has the following features:

• Small plug-in board with DIP form factor (two 7-pin headers spaced at 600 mil)

• Mini-USB connector

• Access to the UART signals (Tx, Rx), I

C/SMBus (SCL, SDA) and all the GP

signals (GP0 – GP3)

• PICkit Serial Analyzer compatible header

• 3.3 or 5V jumper-selectable V

DD; the breakout board can be used to supply up to

500 mA to the rest of the system.

• Jumper-selectable I

C/SMBus on-board pull-up resistors. The user can select

whether or not the on-board pull-up resistors will be connected to the SCL and

SDA lines.

2.2 BOARD SETUP

Follow these steps to install the software and set up the MCP2221 Breakout Module:

1. Download the support material (MCP2221 DLL, MCP2221 Utility, MCP2221

C/SMBus Terminal) that can be found on the board’s web page, on the

Microchip web site.

2. Unzip and install the driver package for the MCP2221 device.

3. Plug the board (using a DIP adapter or the PICkit Serial Analyzer header) into

the target system needing UART-to-USB and/or USB-to-I

C/SMBus conversion.

4. Connect the MCP2221 Breakout Module to a USB port on a Windows

-based

PC.

5. Windows will automatically install the driver for this board. Wait for the installation

to complete.

The board is now set up for operation. Optional steps for using the dedicated

application include the following:

1. Unzip and install the PC software.

2. Start a Hyperterminal-like application (or any serial port application) in order to

get access to the COM port.

3. Start the provided I

C/SMBus Terminal tool in order to exercise the I

C/SMBus.