ATMEGA128A-AN Atmel, ATMEGA128A-AN Datasheet - Page 62

• Manufacturer Part Number: ATMEGA128A-AN
• Description: IC MCU AVR 128K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-AN

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K 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: 64-TQFP
• Core: AVR8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.1.1
8151H–AVR–02/11
Moving Interrupts Between Application and Boot Space
When the BOOTRST fuse is programmed and the Boot section size set to 8 Kbytes, the most
typical and general program setup for the Reset and Interrupt Vector Addresses is:
When the BOOTRST fuse is programmed, the Boot section size set to 8 Kbytes 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 is:
The General Interrupt Control Register controls the placement of the interrupt vector table.
$F004
:.
$F044
Address
.org $0002
$0002
$0004
:.
$0044
;
.org $F000
$F000
$F001
$F002
$F003
$F004
$F005
Address
;
.org $F000
$F000
$F002
$F004
:.
$F044
$F046
$F047
$F048
$F049
$F04A
$F04B
RESET: ldi
RESET: ldi
LabelsCode
jmp
:.
jmp
jmp
jmp
:.
jmp
out
ldi
out
sei
<instr>
jmp
jmp
jmp
:.
jmp
out
ldi
out
sei
<instr>
Labels
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 ; Store Program Memory Ready Handler
r16,high(RAMEND); Main program start
SPH,r16
r16,low(RAMEND)
SPL,r16
xxx
xxx
Code
; IRQ1 Handler
;
; Store Program Memory Ready Handler
Comments
; IRQ0 Handler
; IRQ1 Handler
;
; Store Program Memory Ready Handler
; Set stack pointer to top of RAM
; Enable interrupts
; Reset handler
; IRQ0 Handler
; IRQ1 Handler
;
; Set stack pointer to top of RAM
; Enable interrupts
Comments
ATmega128A
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