ATxmega64D4 Atmel Corporation, ATxmega64D4 Datasheet - Page 45
ATxmega64D4
Manufacturer Part Number
ATxmega64D4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega64D4
Flash (kbytes)
64 Kbytes
Pin Count
44
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Speed
No
Usb Interface
No
Spi
4
Twi (i2c)
2
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
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
4
Output Compare Channels
14
Input Capture Channels
14
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATxmega64D4-AU
Manufacturer:
AT
Quantity:
20 000
Company:
Part Number:
ATxmega64D4-H
Manufacturer:
ATMEL
Quantity:
5
Company:
Part Number:
ATxmega64D4-U
Manufacturer:
ATMEL
Quantity:
86
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5.3
8210B–AVR–04/10
Events
Figure 5-1.
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 5-2.
Timer/Counter
Over-/Underflow
Compare Match
Event Source
Event System Overview and Connected Peripherals
Example of event source, generator, user and action
Error
P O R T x
A D C x
|
Event Generator
IR C O M
C lk
S YS
E ven t R o u tin g
N etw o rk
Network
Routing
Event
T /C xn
C P U
Event Action Selection
Channel Sweep
Event Action
R T C
Conversion
A C x
ADC
Single
XMEGA D
Event User
45
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