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ATMEGA48 Datasheet(PDF) 61 Page - ATMEL Corporation

Part # ATMEGA48
Description  8-bit Microcontroller with 8K Bytes In-System Programmable Flash
PDF  374 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA48 Datasheet(HTML) 61 Page - ATMEL Corporation

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61
2545J–AVR–12/06
ATmega48/88/168
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
10.4
Interrupt Vectors in ATmega168
Notes:
1. When the BOOTRST Fuse is programmed, the device will jump to the Boot Loader address at
reset, see ”Boot Loader Support – Read-While-Write Self-Programming, ATmega88 and
ATmega168” on page 269.
Table 10-4.
Reset and Interrupt Vectors in ATmega168
VectorNo.
Program
Address(2)
Source
Interrupt Definition
1
0x0000(1)
RESET
External Pin, Power-on Reset, Brown-out Reset and Watchdog System Reset
2
0x0002
INT0
External Interrupt Request 0
3
0x0004
INT1
External Interrupt Request 1
4
0x0006
PCINT0
Pin Change Interrupt Request 0
5
0x0008
PCINT1
Pin Change Interrupt Request 1
6
0x000A
PCINT2
Pin Change Interrupt Request 2
7
0x000C
WDT
Watchdog Time-out Interrupt
8
0x000E
TIMER2 COMPA
Timer/Counter2 Compare Match A
9
0x0010
TIMER2 COMPB
Timer/Counter2 Compare Match B
10
0x0012
TIMER2 OVF
Timer/Counter2 Overflow
11
0x0014
TIMER1 CAPT
Timer/Counter1 Capture Event
12
0x0016
TIMER1 COMPA
Timer/Counter1 Compare Match A
13
0x0018
TIMER1 COMPB
Timer/Coutner1 Compare Match B
14
0x001A
TIMER1 OVF
Timer/Counter1 Overflow
15
0x001C
TIMER0 COMPA
Timer/Counter0 Compare Match A
16
0x001E
TIMER0 COMPB
Timer/Counter0 Compare Match B
17
0x0020
TIMER0 OVF
Timer/Counter0 Overflow
18
0x0022
SPI, STC
SPI Serial Transfer Complete
19
0x0024
USART, RX
USART Rx Complete
20
0x0026
USART, UDRE
USART, Data Register Empty
21
0x0028
USART, TX
USART, Tx Complete
22
0x002A
ADC
ADC Conversion Complete
23
0x002C
EE READY
EEPROM Ready
24
0x002E
ANALOG COMP
Analog Comparator
25
0x0030
TWI
2-wire Serial Interface
26
0x0032
SPM READY
Store Program Memory Ready



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