AT90USB1286-16MU ATMEL [ATMEL Corporation], AT90USB1286-16MU Datasheet - Page 366

• Manufacturer Part Number: AT90USB1286-16MU
• Description: Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
• Manufacturer: ATMEL [ATMEL Corporation]

28.7.14
366
AT90USB64/128
AT90USB64/128 Boot Loader Parameters
In
ming are given.
Table 28-8.
Note:
Table 28-8
Do_spm:
Wait_spm:
Wait_ee:
1
1
0
0
1
1
0
0
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, EEPE
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
0
1
0
1
0
1
0
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
temp1, SPMCSR
temp2, SREG
SPMCSR, spmcrval
SREG, temp2
512 words
1024 words
2048 words
4096 words
512 words
1024 words
2048 words
4096 words
through
Boot Size Configuration (Word Addresses)
Table
4
8
16
32
4
8
16
32
28-10, the parameters used in the description of the Self-Program-
0x0000 - 0x7DFF
0x0000 - 0x7BFF
0x0000 - 0x77FF
0x0000 - 0x6FFF
0x0000 - 0xFDFF
0x0000 - 0xFBFF
0x0000 - 0xF7FF
0x0000 - 0xEFFF
0x7E00 - 0x7FFF
0x7C00 - 0x7FFF
0x7800 - 0x7FFF
0x7000 - 0x7FFF
0xFE00 - 0xFFFF
0xFC00 - 0xFFFF
0xF800 - 0xFFFF
0xF000 - 0xFFFF
(1)
Figure 28-2
0x7DFF
0x7BFF
0x77FF
0x6FFF
0xFDFF
0xFBFF
0xF7FF
0xEFFF
7593A–AVR–02/06
0x7E00
0x7C00
0x7800
0x7000
0xFE00
0xFC00
0xF800
0xF000