ATxmega64A1 Atmel Corporation, ATxmega64A1 Datasheet - Page 66
ATxmega64A1
Manufacturer Part Number
ATxmega64A1
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega64A1
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
78
Ext Interrupts
78
Usb Speed
No
Usb Interface
No
Spi
12
Twi (i2c)
4
Uart
8
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
4
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
4
Eeprom (bytes)
2048
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
8
Output Compare Channels
24
Input Capture Channels
24
Pwm Channels
24
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega64A1-AU
Manufacturer:
Atmel
Quantity:
135
Company:
Part Number:
ATxmega64A1U-AU
Manufacturer:
ATMEL
Quantity:
953
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6.3
8077H–AVR–12/09
Events
Figure 6-1.
The CPU is not part of the Event System, but it indicates that it is possible to manually generate
events from software or by using the on-chip debug system.
The Event System works in active and idle mode.
In the context of the Event System, an indication that a change of state within a peripheral has
occurred is called an event. There are two main types of events: Signaling events and data
events. Signaling events only indicate a change of state while data events contain additional
information on the event.
The peripheral from where the event origin is called the Event Generator. Within each periph-
eral, for example a Timer/Counter, there can be several event sources, such as a timer compare
match or timer overflow. The peripheral using the event is called the Event User, and the action
that is triggered is called the Event Action.
Figure 6-2.
Timer/Counter
Over-/Underflow
Compare Match
Event Source
Event System Overview and Connected Peripherals
Example of event source, generator, user and action
Error
|
Event Generator
ADCx
DACx
IRCOM
PORTx
Event Routing
Network
T/Cxn
Network
Routing
Clk
Event
SYS
DMA
CPU
Event Action Selection
RTC
ACx
Channel Sweep
Event Action
Conversion
ADC
Single
XMEGA A
Event User
66
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