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MCB1700 User's Guide
Introduction Setup 
Theory of Operation 
Block Diagram Schematics Technical Data Prototyping Area Microcontroller Power Supply JTAG Interface ETM Interface LCD Panel LEDs Push Buttons Joystick Potentiometer Speaker Serial Ports CAN Interface USB Interface Ethernet Interface MicroSD Connector Writing Programs Example ProgramsSerial Ports
The MCB1700 board connects the ASC0 on-chip serial UART to the ST3232 (IC6), which converts the logic signals to RS-232 voltage levels. The ASC0 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.
The COM1 DB9 connector uses the standard 3-wire interface and does not connect the DTR or RTS pins to any board component as shown in the figure below.
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