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7810C–AVR–10/12
Atmel ATmega328P [Preliminary]
Figure 21-22. TWI Address Match Logic, Block Diagram
• Bit 0 – Res: Reserved Bit
This bit is an unused bit in the ATmega328P, and will always read as zero.
Address
Match
Address Bit Comparator 0
Address Bit Comparator 6..1
TWAR0
TWAMR0
Address
Bit 0