ATMEGA16-16AU SL602 Atmel, ATMEGA16-16AU SL602 Datasheet - Page 257
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ATMEGA16-16AU SL602
Manufacturer Part Number
ATMEGA16-16AU SL602
Description
Manufacturer
Atmel
Datasheet
1.ATMEGA16-16AU_SL602.pdf
(357 pages)
- Current page: 257 of 357
- Download datasheet (8Mb)
ATmega16 Boot
Loader Parameters
2466T–AVR–07/10
In
are given.
Table 100. Boot Size Configuration
Note:
Table 101. Read-While-Write Limit
Note:
BOOTSZ1
1
1
0
0
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Table 100
Do_spm:
Wait_spm:
Wait_ee:
sbrs temp1, RWWSB
ret
; re-enable the RWW section
ldi
call Do_spm
rjmp Return
; check for previous SPM complete
in
sbrc temp1, SPMEN
rjmp Wait_spm
; input: spmcrval determines SPM action
; disable interrupts if enabled, store status
in
cli
; check that no EEPROM write access is present
sbic EECR, EEWE
rjmp Wait_ee
; SPM timed sequence
out
spm
; restore SREG (to enable interrupts if originally enabled)
out
ret
1. The different BOOTSZ Fuse configurations are shown in
1. For details about these two section, see
247
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
temp1, SPMCR
temp2, SREG
SPMCR, spmcrval
SREG, temp2
BOOTSZ0
1
0
1
0
through
and
“RWW – Read-While-Write Section” on page 247
Table
Boot
Size
128
words
256
words
512
words
1024
words
102, the parameters used in the description of the self programming
Pages
2
4
8
16
(1)
(1)
Application
Flash
Section
$0000 -
$1F7F
$0000 -
$1EFF
$0000 -
$1DFF
$0000 -
$1BFF
; If RWWSB is set, the RWW section is not
; ready yet
“NRWW – No Read-While-Write Section” on page
Boot
Loader
Flash
Section
$1F80 -
$1FFF
$1F00 -
$1FFF
$1E00 -
$1FFF
$1C00 -
$1FFF
Pages
112
16
End
Application
section
$1F7F
$1EFF
$1DFF
$1BFF
Figure 125
Address
$0000 - $1BFF
$1C00 - $1FFF
ATmega16(L)
Boot Reset
Address
(start Boot
Loader
Section)
$1F80
$1F00
$1E00
$1C00
257
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