ATXMEGA32A4-CUR Atmel, ATXMEGA32A4-CUR Datasheet - Page 65

• Manufacturer Part Number: ATXMEGA32A4-CUR
• Description: MCU AVR 32+4 FLASH 49VFBGA
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA32A4-CUR

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 3.6 V
• Data Converters: A/D 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 49-VFBGA
• For Use With: ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6. Event System
6.1
6.2
8077H–AVR–12/09
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 or DMA resources.
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 and DMA independent operation
8 Event Channels allows for up to 8 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)
– Digital to Analog Converters (DACx)
– DMA (DMA) Controller
– Ports
– Manual Event Generation from software (CPU)
– Quadrature Decoding
– Digital Filtering
Figure 6-1 on page 66
SYS
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shows a basic block diagram of the Event System with the Event
XMEGA A
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