ATXMEGA192D3-AU Atmel, ATXMEGA192D3-AU Datasheet - Page 15

MCU AVR 192K FLASH 64TQFP

ATXMEGA192D3-AU

Manufacturer Part Number
ATXMEGA192D3-AU
Description
MCU AVR 192K FLASH 64TQFP
Manufacturer
Atmel
Series
AVR® XMEGAr
Datasheets

Specifications of ATXMEGA192D3-AU

Core Processor
AVR
Core Size
8/16-Bit
Speed
32MHz
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
192KB (96K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.6 V ~ 3.6 V
Data Converters
A/D 16x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Controller Family/series
ATXMEGA
No. Of I/o's
50
Eeprom Memory Size
2KB
Ram Memory Size
16KB
Cpu Speed
32MHz
Rohs Compliant
Yes
Processor Series
XMEGA
Core
AVR
Data Bus Width
8 bit, 16 bit
Data Ram Size
16 KB
Interface Type
SPI, TWI, USART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
50
Number Of Timers
5
Operating Supply Voltage
2.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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8. DMAC - Direct Memory Access Controller
8.1
8.2
8068T–AVR–12/10
Features
Overview
The XMEGA A3 has a Direct Memory Access (DMA) Controller to move data between memories
and peripherals in the data space. The DMA controller uses the same data bus as the CPU to
transfer data.
It has 4 channels that can be configured independently. Each DMA channel can perform data
transfers in blocks of configurable size from 1 to 64K bytes. A repeat counter can be used to
repeat each block transfer for single transactions up to 16M bytes. Each DMA channel can be
configured to access the source and destination memory address with incrementing, decrement-
ing or static addressing. The addressing is independent for source and destination address.
When the transaction is complete the original source and destination address can automatically
be reloaded to be ready for the next transaction.
The DMAC can access all the peripherals through their I/O memory registers, and the DMA may
be used for automatic transfer of data to/from communication modules, as well as automatic
data retrieval from ADC conversions, data transfer to DAC conversions, or data transfer to or
from port pins. A wide range of transfer triggers is available from the peripherals, Event System
and software. Each DMA channel has different transfer triggers.
To allow for continuous transfers, two channels can be interlinked so that the second takes over
the transfer when the first is finished and vice versa.
The DMA controller can read from memory mapped EEPROM, but it cannot write to the
EEPROM or access the Flash.
Allows High-speed data transfer
4 Channels
From 1 byte and up to 16 M bytes transfers in a single transaction
Multiple addressing modes for source and destination address
1, 2, 4, or 8 bytes Burst Transfers
Programmable priority between channels
– From memory to peripheral
– From memory to memory
– From peripheral to memory
– From peripheral to peripheral
– Increment
– Decrement
– Static
XMEGA A3
15

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