ATXMEGA32A4-CU 查看數據表（PDF） - Atmel Corporation

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ATXMEGA32A4-CU

8/16-bit AVR® XMEGA A4 Microcontroller

Atmel Corporation 

XMEGA A4

Problem fix/Workaround

None, avoid using the DAC in the above configurations in order to prevent increased INL

error.

8. VCC voltage scaler for AC is non-linear

The 6-bit VCC voltage scaler in the Analog Comparators is non-linear.

Problem fix/Workaround

Use external voltage input for the analog comparator if accurate voltage levels are needed

9. Inverted I/O enable does not affect Analog Comparator Output

The inverted I/O pin function does not affect the Analog Comparator output function.

Problem fix/Workarund

Configure the analog comparator setup to give a inverted result (i.e. connect positive input to

the negative AC input and vice versa), or use and externel inverter to change polarity of

Analog Comparator Output.

97

8069O–AVR–08/10

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