AT90CAN128-16AE ATMEL Corporation, AT90CAN128-16AE Datasheet - Page 58

• Manufacturer Part Number: AT90CAN128-16AE
• Description: 8-bit Avr Microcontroller With 128K Bytes of Isp Flash And CAN Controller.flash (Kbytes) 128 Vcc (V) 2.7-5.5 EEPROM (Kbytes) 4 SRAM (bytes) 4K CAN (mess. Obj.) 15
• Manufacturer: ATMEL Corporation

58
AT90CAN128
Table 25. Reset and Interrupt Vectors
Notes:
Table 26 shows reset and Interrupt Vectors placement for the various combinations of
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 loca-
tions. 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 26. Reset and Interrupt Vectors Placement
Note:
The most typical and general program setup for the Reset and Interrupt Vector
Addresses in AT90CAN128 is:
Vector
BOOTRST
No.
30
31
32
33
34
35
36
37
;AddressLabels Code
0x0000
0x0002
0x0004
0x0006
0x0008
0x000A
0x000C
0x000E
0x0010
0x0012
0x0014
1
1
0
0
1. When the BOOTRST Fuse is programmed, the device will jump to the Boot Loader
2. When the IVSEL bit in MCUCR is set, Interrupt Vectors will be moved to the start of
The Boot Reset Address is shown in Table 118 on page 321. For the BOOTRST Fuse
“1” means unprogrammed while “0” means programmed.
Address
Program
address at reset, see “Boot Loader Support – Read-While-Write Self-Programming”
on page 309.
the Boot Flash Section. The address of each Interrupt Vector will then be the address
in this table added to the start address of the Boot Flash Section.
0x003C
0x003A
0x003E
0x0040
0x0042
0x0044
0x0046
0x0048
IVSEL
(2)
0
1
0
1
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
Source
TIMER3 COMPB
TIMER3 COMPC
TIMER3 OVF
USART1, RX
USART1, UDRE
USART1, TX
TWI
SPM READY
Reset Address
0x0000
0x0000
Boot Reset Address
Boot Reset Address
RESET
EXT_INT0
EXT_INT1
EXT_INT2
EXT_INT3
EXT_INT4
EXT_INT5
EXT_INT6
EXT_INT7
TIM2_COMP
TIM2_OVF
Comments
; Reset Handler
; IRQ0 Handler
; IRQ1 Handler
; IRQ2 Handler
; IRQ3 Handler
; IRQ4 Handler
; IRQ5 Handler
; IRQ6 Handler
; IRQ7 Handler
; Timer2 Compare Handler
; Timer2 Overflow Handler
Interrupt Definition
Timer/Counter3 Compare Match B
Timer/Counter3 Compare Match C
Timer/Counter3 Overflow
USART1, Rx Complete
USART1 Data Register Empty
USART1, Tx Complete
Two-wire Serial Interface
Store Program Memory Ready
(Note:)
0x0002
Boot Reset Address + 0x0002
0x0002
Boot Reset Address + 0x0002
Interrupt Vectors Start Address
4250C–CAN–03/04