A000046 Arduino, A000046 Datasheet - Page 67
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: 67 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 ATmega328P 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
ATmega328P is:
0x0020
0x0022
0x0024
0x0026
0x0028
0x002A
0x002C
0x002E
0x0030
0x0032
;
0x0033RESET:
0x0034
0x0035
0x0036
0x0037
0x0038
Address Labels Code
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
;
.org 0x3C02
0x3C02
0x3C04
...
0x3C32
Address Labels Code
.org 0x0002
0x0002
0x0004
...
0x0032
;
.org 0x3C00
0x3C00
...
RESET: ldi
RESET: ldi
...
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
ldi
out
ldi
out
sei
<instr>
out
ldi
out
sei
<instr>
jmp
jmp
...
jmp
jmp
jmp
...
jmp
...
...
TIM0_OVF
SPI_STC
USART_RXC
USART_UDRE
USART_TXC
ADC
EE_RDY
ANA_COMP
TWI
SPM_RDY
r16, high(RAMEND); Main program start
SPH,r16
r16, low(RAMEND)
SPL,r16
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
xxx
xxx
ATmega48PA/88PA/168PA/328P
Comments
; Timer0 Overflow Handler
; SPI Transfer Complete Handler
; USART, RX Complete Handler
; USART, UDR Empty Handler
; USART, TX Complete Handler
; ADC Conversion Complete Handler
; EEPROM Ready Handler
; Analog Comparator Handler
; 2-wire Serial Interface Handler
; Store Program Memory Ready Handler
; Set Stack Pointer to top of RAM
; Enable interrupts
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
67
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