A000046 Arduino, A000046 Datasheet - Page 61
A000046
Manufacturer Part Number
A000046
Description
MCU, MPU & DSP Development Tools Uno
Manufacturer
Arduino
Series
-r
Type
MCUr
Specifications of A000046
Processor To Be Evaluated
ATmega328
Interface Type
USB, I2C, SPI
Dimensions
2.7 in x 2.1 in
Operating Supply Voltage
5 V
Contents
Board
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
ATmega328
- Current page: 61 of 448
- Download datasheet (13Mb)
8161D–AVR–10/09
When the BOOTRST Fuse is unprogrammed, the Boot section size set to 2K bytes 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 ATmega88PA is:
When the BOOTRST Fuse is programmed and the Boot section size set to 2K bytes, the most
typical and general program setup for the Reset and Interrupt Vector Addresses in
ATmega88PA is:
When the BOOTRST Fuse is programmed, the Boot section size set to 2K bytes 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 ATmega88PA is:
Address Labels Code
0x000
0x001
0x002
0x003
0x004
0x005
;
.org 0xC01
0xC01
0xC02
...
0xC19
Address Labels Code
.org 0x001
0x001
0x002
...
0x019
;
.org 0xC00
0xC00
0xC01
0xC02
0xC03
0xC04
0xC05
Address Labels Code
;
.org 0xC00
0xC00
0xC01
0xC02
...
0xC19
;
0xC1A
RESET: ldi
RESET: ldi
RESET: ldi
out
ldi
out
sei
<instr>
rjmp
rjmp
...
rjmp
rjmp
rjmp
...
rjmp
out
ldi
out
sei
<instr>
rjmp
rjmp
rjmp
...
rjmp
r16,high(RAMEND); Main program start
SPH,r16
r16,low(RAMEND)
SPL,r16
EXT_INT0
EXT_INT1
...
SPM_RDY
EXT_INT0
EXT_INT1
...
SPM_RDY
r16,high(RAMEND); Main program start
SPH,r16
r16,low(RAMEND)
SPL,r16
RESET
EXT_INT0
EXT_INT1
...
SPM_RDY
r16,high(RAMEND); Main program start
xxx
xxx
ATmega48PA/88PA/168PA/328P
Comments
Comments
; Set Stack Pointer to top of RAM
; Enable interrupts
; IRQ0 Handler
; IRQ1 Handler
;
; Store Program Memory Ready Handler
; IRQ0 Handler
; IRQ1 Handler
;
; Store Program Memory Ready Handler
; Set Stack Pointer to top of RAM
; Enable interrupts
Comments
; Reset handler
; IRQ0 Handler
; IRQ1 Handler
;
; Store Program Memory Ready Handler
61
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