 MCB2100 User's Guide | |
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MCB2100 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 Ports CAN Interface Writing Programs Example ProgramsSerial Ports
The MCB2100 board connects the two ASC0 on-chip serial UARTs to the MAX563 (IC2), 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.
The serial ports (COM0 and COM1) are configured as a standard 3-wire interface.
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.
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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