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FT231XQ-R Fiches technique(PDF) 35 Page - Future Technology Devices International Ltd. |
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FT231XQ-R Fiches technique(HTML) 35 Page - Future Technology Devices International Ltd. |
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35 / 45 page ![]() Copyright © 2013 Future Technology Devices International Limited 35 FT231X USB TO FULL HANDSHAKE UART IC Datasheet Version 1.2 Document No.: FT_000565 Clearance No.: FTDI# 261 Configuration Memory Area (writable) This area stores the configuration data for the device, including the data which is returned to the host in the configuration descriptors (e.g. the VID, PID and string descriptions) and also values which set the hardware configuration (the signal assigned to each CBUS pin for example). These values can have a significant effect on the behaviour of the device. Steps must be taken to ensure that these locations are not written to un-intentionally by an application which is intended to access only the user area. This area is included in a checksum which covers configuration areas of the memory, and so changing any value can also cause this checksum to fail. Configuration Memory Area (non-writable) This is a reserved area and the application should not write to this area of memory. Any attempt to write these locations will fail. |
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