參數(shù)資料
型號: S80C32-44:RD
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, 44 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 88/152頁
文件大小: 2528K
292
8021G–AVR–03/11
ATmega329P/3290P
brne Rdloop
; return to RWW section
; verify that RWW section is safe to read
Return:
in
temp1, SPMCSR
sbrs temp1, RWWSB
; If RWWSB is set, the RWW section is not ready yet
ret
; re-enable the RWW section
ldi
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
call Do_spm
rjmp Return
Do_spm:
; check for previous SPM complete
Wait_spm:
in
temp1, SPMCSR
sbrc temp1, SPMEN
rjmp Wait_spm
; input: spmcrval determines SPM action
; disable interrupts if enabled, store status
in
temp2, SREG
cli
; check that no EEPROM write access is present
Wait_ee:
sbic EECR, EEWE
rjmp Wait_ee
; SPM timed sequence
out
SPMCSR, spmcrval
spm
; restore SREG (to enable interrupts if originally enabled)
out
SREG, temp2
ret
26.8.13
Boot Loader Parameters
26.8.13.1
ATmega329P/3290P
In Table 26-6 through Table 26-8, the parameters used in the description of the Self-Programming are given.
Note:
1. The different BOOTSZ Fuse configurations are shown in Figure 26-2
Table 26-6.
Boot Size Configuration (ATmega329P/3290P)(1)
BOOTSZ1
BOOTSZ0
Boot Size
Pages
Application
Flash Section
Boot Loader
Flash Section
End
Application
Section
Boot Reset
Address
(Start
Boot Loader
Section)
1
256 words
4
0x0000-0x3EFF
0x3F00-0x3FFF
0x3EFF
0x3F00
1
0
512 words
8
0x0000-0x3DFF
0x3E00-0x3FFF
0x3DFF
0x3E00
0
1
1024 words
16
0x0000-0x3BFF
0x3C00-0x3FFF
0x3BFF
0x3C00
0
2048 words
32
0x0000-0x37FF
0x3800-0x3FFF
0x37FF
0x3800
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