Atmel ATmega328P Xplained Mini MEGA328P-XMINI MEGA328P-XMINI Data Sheet
Product codes
MEGA328P-XMINI
62
ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]
Atmel-8271H-AVR- ATmega-Datasheet_08/2014
0x002
ldi
r16,low(RAMEND)
0x003
out
SPL,r16
0x004
sei
; Enable interrupts
0x005
<instr> xxx
;
.org 0xC01
0xC01
rjmp
EXT_INT0
; IRQ0 Handler
0xC02
rjmp
EXT_INT1
; IRQ1 Handler
...
...
...
;
0xC19
rjmp
SPM_RDY
; Store Program Memory Ready Handler
When the BOOTRST Fuse is programmed and the Boot section size set to 2Kbytes, the most typical and
general program setup for the Reset and Interrupt Vector Addresses in ATmega88A/88PA is:
general program setup for the Reset and Interrupt Vector Addresses in ATmega88A/88PA is:
Address
LabelsCodeComments
.org 0x001
0x001
rjmp
EXT_INT0
; IRQ0 Handler
0x002
rjmp
EXT_INT1
; IRQ1 Handler
...
...
...
;
0x019
rjmp
SPM_RDY
; Store Program Memory Ready Handler
;
.org 0xC00
0xC00
RESET:
ldi
r16,high(RAMEND); Main program start
0xC01
out
SPH,r16
; Set Stack Pointer to top of RAM
0xC02
ldi
r16,low(RAMEND)
0xC03
out
SPL,r16
0xC04
sei
; Enable interrupts
0xC05
<instr> xxx
When the BOOTRST Fuse is programmed, the Boot section size set to 2Kbytes and the IVSEL bit in the
MCUCR Register is set before any interrupts are enabled, the most typical and general program setup for the
Reset and Interrupt Vector Addresses in ATmega88A/88PA is:
MCUCR Register is set before any interrupts are enabled, the most typical and general program setup for the
Reset and Interrupt Vector Addresses in ATmega88A/88PA is:
Address
Labels
Code
Comments
;
.org 0xC00
0xC00
rjmp
RESET
; Reset handler
0xC01
rjmp
EXT_INT0
; IRQ0 Handler
0xC02
rjmp
EXT_INT1
; IRQ1 Handler
...
...
...
;
0xC19
rjmp
SPM_RDY
; Store Program Memory Ready Handler
;
0xC1A
RESET:
ldi
r16,high(RAMEND); Main program start
0xC1B
out
SPH,r16
; Set Stack Pointer to top of RAM
0xC1C
ldi
r16,low(RAMEND)
0xC1D
out
SPL,r16
0xC1E
sei
; Enable interrupts
0xC1F
<instr> xxx