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AVR Butterfly User Guide

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4271C–AVR–04/05

Fuse Low Byte (0xE2)

– SUT0 (65 ms Start-up Time)

– CKSEL3 (Internal RC Oscillator)

– CKSEL2

– CKSEL0

Lock Bit Byte (0xEF)

– BLB11 (SPM is not allowed to write to the Boot Loader section)

Note:

For all fuses and lock bits, “1” means unprogrammed and “0” means pro-
grammed.Using the AVR Butterfly