406
8331B–AVR–03/12
Atmel AVR XMEGA AU
• Bits 7:4 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
• Bit 3:0 – CALIB[3:0]: Current Source Calibration
The constant current source is calibrated during production. A calibration value can be read from
the signature row and written to the CURRCALIB register from software. Refer to device data
sheet for default calibration values and user calibration range.
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