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MCB2470 User's Guide
Introduction Setup 
Theory of Operation 
Block Diagram Schematics Technical Data Prototyping Area Microcontroller Power Supply Configuration JTAG Interface ETM Interface LEDs Serial Ports CAN Interface Ethernet Interface SD/MMC Connector USB Interface Push Buttons Potentiometers Speaker QVGA Module Accelerometer IrDA Writing Programs Example ProgramsSerial Ports
The MCB2470 board includes an on-chip serial UART to the SP3243E (U11), which converts the logic signals to RS-232 voltage levels. It also includes a USB to Serial bridge FT232RQ (U8) which may be used in bootstrap mode to download other utilities for debugging or downloading flash.
The UART#0 USB connector can supply power to the board and be configured as a USB serial bridge for UART0 with ISP functionality by installing the jumpers RST, P2.10, TxD0, and RxD0 at location J14.
The RS232 DB9 connector is wired to an 8-wire RS232 full modem transceiver. This RS232 interface may be connected as a full modem to UART#1 by installing jumpers J23 and J24 in the upper position, and installing the 6 jumpers at J20. Installing jumpers J23 and J24 in the lower position connects the RS232 transceiver to RxD and TxD on UART#2.
The DB9 connector interface is shown in the figure below.
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