Datasheet

lpm r0, Z+
ld r1, Y+
cpse r0, r1
jmp Error
sbiw loophi:looplo, 1 ;use subi for PAGESIZEB<=256
brne Rdloop
; return to RWW section
; verify that RWW section is safe to read
Return:
lds temp1, SPMCSR
sbrs temp1, RWWSB ; If RWWSB is set, the RWW section is
not ready yet
ret
; re-enable the RWW section
ldi spmcsrval, (1<<RWWSRE) | (1<<SPMEN)
call Do_spm
rjmp Return
Do_spm:
; check for previous SPM complete
Wait_spm:
lds temp1, SPMCSR
sbrc temp1, SPMEN
rjmp Wait_spm
; input: spmcsrval determines SPM action
; disable interrupts if enabled, store status
in temp2, SREG
cli
; check that no EEPROM write access is present
Wait_ee:
Atmel ATmega64A [DATASHEET]
Atmel-8160E-ATmega64A_Datasheet_Complete-09/2015
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