ATmega16U2 Atmel Corporation, ATmega16U2 Datasheet - Page 64

• Manufacturer Part Number: ATmega16U2
• Manufacturer: Atmel Corporation

Specifications of ATmega16U2

• Flash (kbytes): 16 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: 21
• 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): 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: 5
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

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
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