ATmega32 Atmel Corporation, ATmega32 Datasheet - Page 45

• Manufacturer Part Number: ATmega32
• Manufacturer: Atmel Corporation

Specifications of ATmega32

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

2503Q–AVR–02/11
Table 19. Reset and Interrupt Vectors Placement
Note:
The most typical and general program setup for the Reset and Interrupt Vector Addresses in
ATmega32 is:
BOOTRST
Address
$000
$002
$004
$006
$008
$00A
$00C
$00E
$010
$012
$014
$016
$018
$01A
$01C
$01E
$020
$022
$024
$026
$028
;
$02A
$02B
$02C
$02D
$02E
$02F
...
1
1
0
0
1. The Boot Reset Address is shown in
means unprogrammed while “0” means programmed.
Labels
RESET:
...
IVSEL
0
1
0
1
Code
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
ldi
out
ldi
out
sei
<instr>
...
Reset address
$0000
$0000
Boot Reset Address
Boot Reset Address
RESET
EXT_INT0
EXT_INT1
EXT_INT2
TIM2_COMP
TIM2_OVF
TIM1_CAPT
TIM1_COMPA
TIM1_COMPB
TIM1_OVF
TIM0_COMP
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
xxx
Table 99 on page
Comments
; Reset Handler
; IRQ0 Handler
; IRQ1 Handler
; IRQ2 Handler
; Timer2 Compare Handler
; Timer2 Overflow Handler
; Timer1 Capture Handler
; Timer1 CompareA Handler
; Timer1 CompareB Handler
; Timer1 Overflow Handler
; Timer0 Compare Handler
; Timer0 Overflow Handler
; SPI Transfer Complete Handler
; USART RX Complete Handler
; UDR Empty Handler
; USART TX Complete Handler
; ADC Conversion Complete Handler
; EEPROM Ready Handler
; Analog Comparator Handler
; Two-wire Serial Interface Handler
; Store Program Memory Ready Handler
; Set Stack Pointer to top of RAM
; Enable interrupts
(1)
Interrupt Vectors Start Address
$0002
Boot Reset Address + $0002
$0002
Boot Reset Address + $0002
255. For the BOOTRST Fuse “1”
ATmega32(L)
45