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Technical Support
On-Line Manuals
MCB2103 User's Guide
Introduction
Setup
Theory of Operation
Block Diagram
PCB Illustration
Schematics
Technical Data
Prototyping Area
Microcontroller
Power Supply
Configuration
JTAG Interface
LEDs
Push Buttons
Potentiometer
Serial Port
Writing Programs
Example Programs
Serial Port
The MCB2103 board connects the on-chip serial UART to the MAX3221 (IC1) which converts the logic signals to RS-232 voltage levels. The UART may be used in bootstrap mode to download other utilities for debugging or downloading flash.
In addition to the standard 3-wire interface, the COM0 DB9 connector is wired to allow a board RESET via the DTR pin, and to enable In-System Programming (ISP) via the RTS pin as shown in the figure below.
Note
- The Flash Magic Utility uses the DTR and RTS pins to control Flash downloading. You must install jumpers J1 and J10 to program Flash with this utility.
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