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== (**COPIED FROM ENGLISH PAGE**) ==This page is intended to show the outline of the chip and to provide additional information that might not be clear from the data sheet.

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&nbsp;[[File:Atxmega128.png]]

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<span style="font-size: 12pt; font-family: 'Times New Roman'; font-weight: bold;">Question:</span><span style="font-size: 12pt; font-family: 'Times New Roman';">&nbsp;The DVDSON FUSE BIT the ATxmega A MANUAL says that for characterization data on VDROP and tSD consult the device data sheet.</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">(Device: ATXMEGA128A1 RevH). But I can't find this Information in the datasheet&nbsp;?</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">&nbsp;</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman'; font-weight: bold;">Answer:&nbsp;</span><span style="font-size: 12pt; font-family: 'Times New Roman';">The voltage spike detector has been removed from the latest revision of the XMEGA A manual.</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">This is because we have, unfortunately, not been able to validate the spike detector fully.</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">&nbsp;</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman'; font-weight: bold;">Question:</span><span style="font-size: 12pt; font-family: 'Times New Roman';">&nbsp;The calibration byte in the production signature row show 0xFF and 0x00 for the ADC Calibration byte. Are these really the calibration values&nbsp;?</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">Errata of Rev H don't show something from calibration bytes. (Device: ATXMEGA128A1 RevH)</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman'; font-weight: bold;">&nbsp;</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman'; font-weight: bold;">Answer:&nbsp;</span><span style="font-size: 12pt; font-family: 'Times New Roman';">Yes this is a known issue with ATXMEGA128A1 RevH. We will be fixing up this</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">issue in the later version of the device.</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">&nbsp;</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">You should write the code for loading the calibration registers in the</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">firmware so that when we fix it in the later version you do not have to fix</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">the code. Also loading it now will not cause any problem in the ADC</span><br/><span style="font-size: 12pt; font-family: 'Times New Roman';">operation.</span><br/><br/>{{Languages}}

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