2 Demonstration Kit
XPort™ Universal Demo Board User Guide 7
The following drawing is a block diagram of the XPort Demo Board showing the
relationships of the components.
Figure 2-1. Demo Board Block Diagram
The demo board has an RS-232 transceiver for connection to the XPort internal
UART. The table below lists the RS232 signals and corresponding pins on the demo
board. All signals are level-shifted by the transceivers.
Table 2-1. RS-232 Signals on Serial Port 1
XPort Demo
PIN FUNCTION DB9
Pin #
Serial Port CON1
TX_232 (Data Out) 3
RX_232 (Data In) 2
CTS_232 (HW Flow Control Input) 8
RTS_232 (HW Flow Control Output)
7
DTR_232 (Modem Control Output) 4
GND (Ground) 5