ATmega48/88/168
See “Addressing the Flash During Self-Programming” on page 275 for details about the use of
Z-pointer during Self-Programming.
26.8.14 ATmega168 Boot Loader Parameters
In Table 26-9 through Table 26-11, the parameters used in the description of the self program-
ming are given.
Table 26-9. Boot Size Configuration, ATmega168
Boot Reset
Boot
Loader
Flash
Address
(Start Boot
Loader
Application
Flash
Section
End
Application
Section
Boot
Size
BOOTSZ1
BOOTSZ0
Pages
Section
Section)
128
words
0x0000 -
0x1F7F
0x1F80 -
0x1FFF
1
1
2
0x1F7F
0x1EFF
0x1DFF
0x1BFF
0x1F80
0x1F00
0x1E00
0x1C00
256
words
0x0000 -
0x1EFF
0x1F00 -
0x1FFF
1
0
0
0
1
0
4
8
512
words
0x0000 -
0x1DFF
0x1E00 -
0x1FFF
1024
words
0x0000 -
0x1BFF
0x1C00 -
0x1FFF
16
Note:
The different BOOTSZ Fuse configurations are shown in Figure 26-2.
Table 26-10. Read-While-Write Limit, ATmega168
Section
Pages
112
Address
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
0x0000 - 0x1BFF
0x1C00 - 0x1FFF
16
For details about these two section, see “NRWW – No Read-While-Write Section” on page 271
and “RWW – Read-While-Write Section” on page 271
283
2545M–AVR–09/07
ATMEL [ ATMEL ]
