Datasheet

358
ATmega640/1280/1281/2560/2561
2549K–AVR–01/07
Flash memory, use the instruction Load Extended Address Byte to define the
upper address byte, which is not included in the Read Program Memory instruc-
tion. The extended address byte is stored until the command is re-issued, i.e.,
the command needs only be issued for the first page, and when crossing the
64KWord boundary.
7. At the end of the programming session, RESET
can be set high to commence
normal operation.
8. Power-off sequence (if needed):
Set RESET
to “1”.
Tur n V
CC
power off.
Table 164. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Symbol Minimum Wait Delay
t
WD_FLASH
4.5 ms
t
WD_EEPROM
9.0 ms
t
WD_ERASE
9.0 ms