ATMEGA32A-MUR Atmel, ATMEGA32A-MUR Datasheet - Page 46
![MCU AVR 32KB FLASH 16MHZ 44QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA32A-MUR
Manufacturer Part Number
ATMEGA32A-MUR
Description
MCU AVR 32KB FLASH 16MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA32A-MU.pdf
(353 pages)
Specifications of ATMEGA32A-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8155C–AVR–02/11
the case if the Reset Vector is in the Application section while the Interrupt Vectors are in the
Boot section or vice versa.
Table 11-2.
Note:
The most typical and general program setup for the Reset and Interrupt Vector Addresses in
ATmega32A is:
BOOTRST
Address Labels
$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.
RESET:
:.
Reset and Interrupt Vectors Placement
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 25-6 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)
$0002
Boot Reset Address + $0002
$0002
Boot Reset Address + $0002
Interrupt Vectors Start Address
263. For the BOOTRST Fuse “1”
ATmega32A
46
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