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NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to
improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any
circuits described herein, conveys no license under any patent or other right, and makes no representation that
the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration
purposes and may vary depending upon a user’s specific application. While the information in this publication
has been carefully checked; no responsibility, however, is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the
failure or malfunction of the product can reasonably be expected to cause failure of the life support system or
to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless
EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has
been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately
protected under the circumstances.
Copyright 2011 EXAR Corporation
Datasheet June 2011.
Send your UART technical inquiry with technical details to hotline: uarttechsupport@exar.com.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
XR17V358/354 EVALUATION BOARD USER’S MANUAL REV. 1.0.1
Figure 3 shows the DB9 cnnector. Table 8 shows the DB9 connector pinout.
FIGURE 3. DB9 CONNECTOR
TABLE 8: DB9 CONNECTOR PINOUT
PIN NUMBER 1 2 3 4 5 6 7 8 9
SIGNAL DCDx RXDx TXDx DTx GND DSx RTx CTx RINx
2.8 MPIO pins
The MPIO pins of the both the master and slave devices are connected to LEDs or test points on the
evaluation board. Refer to page 6 of the evaluation board schematic for details.
3.0 DRIVERS
Software drivers for Windows and Linux are available from Exar. Send an e-mail with your driver request to
uarttechsupport@exar.com.
