ATmega32U2 Atmel Corporation, ATmega32U2 Datasheet - Page 64
ATmega32U2
Manufacturer Part Number
ATmega32U2
Description
Manufacturer
Atmel Corporation
Specifications of ATmega32U2
Flash (kbytes)
32 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
22
Ext Interrupts
20
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
1024
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
5
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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11. Interrupts
11.1
11.2
7799D–AVR–11/10
Overview
Interrupt Vectors in ATmega8U2/16U2/32U2
T h i s s e c t i o n d e s c r i b e s t h e s p e c i f i c s o f t h e i n t e r r u p t h a n d l i n g a s p e r f o r m e d i n
ATmega8U2/16U2/32U2. For a general explanation of the AVR interrupt handling, refer to
“Reset and Interrupt Handling” on page
Table 11-1.
Vector
No.
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
11
1
2
3
4
5
6
7
8
9
Address
Program
$0000
$000A
$000C
$000E
$001A
$001C
$001E
$002A
$002C
$002E
$0002
$0004
$0006
$0008
$0010
$0012
$0014
$0016
$0018
$0020
$0022
$0024
$0026
$0028
$0030
$0032
Reset and Interrupt Vectors
(1)
(2)
Source
RESET
INT0
INT1
INT2
INT3
INT4
INT5
INT6
INT7
PCINT0
PCINT1
USB General
USB Endpoint
WDT
TIMER1 CAPT
TIMER1 COMPA
TIMER1 COMPB
TIMER1 COMPC
TIMER1 OVF
TIMER0 COMPA
TIMER0 COMPB
TIMER0 OVF
SPI, STC
USART1 RX
USART1 UDRE
USART1TX
13.
Interrupt Definition
External Pin, Power-on Reset, Brown-out Reset,
Watchdog Reset, USB Reset and debugWIRE AVR
Reset
External Interrupt Request 4
External Interrupt Request 5
External Interrupt Request 6
Pin Change Interrupt Request 0
Pin Change Interrupt Request 1
Watchdog Time-out Interrupt
Timer/Counter1 Capture Event
Timer/Counter1 Compare Match A
Timer/Counter1 Compare Match B
Timer/Counter1 Compare Match C
Timer/Counter1 Overflow
Timer/Counter0 Compare Match A
Timer/Counter0 Compare match B
Timer/Counter0 Overflow
SPI Serial Transfer Complete
USART1 Rx Complete
USART1 Data Register Empty
External Interrupt Request 0
External Interrupt Request 1
External Interrupt Request 2
External Interrupt Request 3
External Interrupt Request 7
USB General Interrupt request
USB Endpoint Interrupt request
USART1 Tx Complete
ATmega8U2/16U2/32U2
64
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