ATMEGA8U2_14 Datasheet, PDF (228/310 Pages) ATMEL Corporation – 125 Powerful Instructions – Most Single Clock Cycle Execution

ATmega8U2/16U2/32U2
Figure 23-1. Read-While-Write vs. No Read-While-Write
Read-While-Write
(RWW) Section
Z-pointer
Addresses RWW
Section
Code Located in
NRWW Section
Can be Read During
the Operation
No Read-While-Write
(NRWW) Section
Z-pointer
Addresses NRWW
Section
CPU is Halted
During the Operation
7799D–AVR–11/10
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