ATxmega128D4 Atmel Corporation, ATxmega128D4 Datasheet - Page 44

• Manufacturer Part Number: ATxmega128D4
• Manufacturer: Atmel Corporation

Specifications of ATxmega128D4

• Flash (kbytes): 128 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): 8
• 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

5. Event System
5.1
5.2
8210B–AVR–04/10
Features
Overview
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The Event System is a set of features for inter peripheral communication. It enables the possibil-
ity for a change of state in one peripheral to automatically trigger actions in other peripherals.
The change of state in a peripheral that will trigger actions in other peripherals is configurable in
software. It is a simple, but powerful system as it allows for autonomous control of peripherals
without any use of interrupt, CPU resource.
The indication of a change of state in a peripheral is referred to as an event. The events are
passed between peripherals using a dedicated routing network called the Event Routing Net-
work.
Routing Network and the peripherals that are connected.
Inter peripheral communication and signalling
CPU independent operation
4 Event Channels allows for up to 4 signals to be routed at the same time
100% predictable timing between peripherals
Events can be generated by
Events can be used by
Advanced Features
Operative in Active and Idle mode
– Timer/Counters (TCxn)
– Real Time Counter (RTC)
– Analog to Digital Converters (ADCx)
– Analog Comparators (ACx)
– Ports (PORTx)
– System Clock (Clk
– Timer/Counters (TCxn)
– Analog to Digital Converters (ADCx)
– Ports
– Manual Event Generation from software (CPU)
– Quadrature Decoding
– Digital Filtering
Figure 5-1 on page 45
SYS
)
shows a basic block diagram of the Event System with the Event
XMEGA D
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