ATmega8515 Atmel Corporation, ATmega8515 Datasheet - Page 54
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ATmega8515
Manufacturer Part Number
ATmega8515
Description
Manufacturer
Atmel Corporation
Specifications of ATmega8515
Flash (kbytes)
8 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
35
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
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
2
Output Compare Channels
3
Input Capture Channels
1
Pwm Channels
3
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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Interrupts
Interrupt Vectors in
ATmega8515
54
ATmega8515(L)
This section describes the specifics of the interrupt handling as performed in
ATmega8515. For a general explanation of the AVR interrupt handling, refer to “Reset
and Interrupt Handling” on page 13.
Table 22. Reset and Interrupt Vectors
Notes:
Table 23 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.
Vector No.
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
1. When the BOOTRST Fuse is programmed, the device will jump to the Boot Loader
2. When the IVSEL bit in GICR is set, Interrupt Vectors will be moved to the start of the
address at reset, see “Boot Loader Support – Read-While-Write Self-Programming”
on page 166.
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.
Address
Program
$000
$00A
$00B
$00C
$00D
$00E
$00F
$001
$002
$003
$004
$005
$006
$007
$008
$009
$010
(1)
(2)
Source
RESET
INT0
INT1
TIMER1 CAPT
TIMER1 COMPA
TIMER1 COMPB
TIMER1 OVF
TIMER0 OVF
SPI, STC
USART, RXC
USART, UDRE
USART, TXC
ANA_COMP
INT2
TIMER0 COMP
EE_RDY
SPM_RDY
Interrupt Definition
Reset and Watchdog Reset
External Interrupt Request 0
External Interrupt Request 1
Timer/Counter1 Compare Match A
Timer/Counter1 Compare Match B
Serial Transfer Complete
USART, Rx Complete
USART Data Register Empty
USART, Tx Complete
Analog Comparator
External Interrupt Request 2
EEPROM Ready
Store Program memory Ready
External Pin, Power-on Reset, Brown-out
Timer/Counter1 Capture Event
Timer/Counter1 Overflow
Timer/Counter0 Overflow
Timer/Counter0 Compare Match
2512K–AVR–01/10