ATMEGA128-16AI Atmel, ATMEGA128-16AI Datasheet - Page 60

• Manufacturer Part Number: ATMEGA128-16AI
• Description: IC AVR MCU 128K 16MHZ 64-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128-16AI

• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1167170A

60
ATmega128
Table 23. Reset and Interrupt Vectors
Notes:
Table 24
BOOTRST and IVSEL settings. If the program never enables an interrupt source, the interrupt
vectors are not used, and regular program code can be placed at these locations. This is also
the case if the Reset Vector is in the Application section while the interrupt vectors are in the
Boot section or vice versa.
Table 24. Reset and Interrupt Vectors Placement
Note:
Vector
BOOTRST
No.
31
32
33
34
35
1
1
0
0
1. When the BOOTRST fuse is programmed, the device will jump to the Boot Loader address at
2. When the IVSEL bit in MCUCR is set, interrupt vectors will be moved to the start of the Boot
3. The Interrupts on address $0030 - $0044 do not exist in ATmega103 compatibility mode.
The Boot Reset Address is shown in
unprogrammed while “0” means programmed.
shows Reset and interrupt vectors placement for the various combinations of
Address
reset, see
Flash section. The address of each interrupt vector will then be address in this table added to
the start address of the boot Flash section.
Program
$003C
$003E
$0040
$0042
$0044
IVSEL
(3)
(3)
(3)
(3)
(3)
(2)
0
1
0
1
“Boot Loader Support – Read-While-Write Self-Programming” on page
Source
USART1, RX
USART1, UDRE
USART1, TX
TWI
SPM READY
Reset Address
$0000
$0000
Boot Reset Address
Boot Reset Address
Interrupt Definition
USART1, Rx Complete
USART1 Data Register Empty
USART1, Tx Complete
Two-wire Serial Interface
Store Program Memory Ready
Table 112 on page
Interrupt Vectors Start Address
$0002
Boot Reset Address + $0002
$0002
Boot Reset Address + $0002
284. For the BOOTRST fuse “1” means
2467V–AVR–02/11
273.