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PDF ATXMEGA192A3U Data sheet ( Hoja de datos )
| Número de pieza | ATXMEGA192A3U | |
| Descripción | 8/16-bit Atmel XMEGA A3U Microcontroller | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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8/16-bit Atmel XMEGA A3U Microcontroller
ATxmega256A3U / ATxmega192A3U /
ATxmega128A3U / ATxmega64A3U
Features
High-performance, low-power Atmel® AVR® XMEGA® 8/16-bit Microcontroller
Nonvolatile program and data memories
64K - 256KBytes of in-system self-programmable flash
4K - 8KBytes boot section
2K - 4KBytes EEPROM
4K - 16KBytes internal SRAM
Peripheral features
Four-channel DMA controller
Eight-channel event system
Seven 16-bit timer/counters
Four timer/counters with four output compare or input capture channels
Three timer/counters with two output compare or input capture
channels
High resolution extension on all timer/counters
Advanced waveform extension (AWeX) on one timer/counter
One USB device interface
USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device
compliant
32 Endpoints with full configuration flexibility
Seven USARTs with IrDA support for one USART
Two two-wire interfaces with dual address match (I2C and SMBus compatible)
Three serial peripheral interfaces (SPIs)
AES and DES crypto engine
CRC-16 (CRC-CCITT) and CRC-32 (IEEE® 802.3) generator
16-bit real time counter (RTC) with separate oscillator
Two sixteen-channel, 12-bit, 2msps Analog to Digital Converters
One two-channel, 12-bit, 1msps Digital to Analog Converter
Four Analog Comparators with window compare function, and current sources
External interrupts on all general purpose I/O pins
Programmable watchdog timer with separate on-chip ultra low power oscillator
QTouch® library support
Capacitive touch buttons, sliders and wheels
Special microcontroller features
Power-on reset and programmable brown-out detection
Internal and external clock options with PLL and prescaler
Programmable multilevel interrupt controller
Five sleep modes
Programming and debug interfaces
JTAG (IEEE 1149.1 compliant) interface, including boundary scan
PDI (program and debug interface)
I/O and packages
50 Programmable I/O pins
64-lead TQFP
64-pad QFN
Operating voltage
1.6 – 3.6V
Operating frequency
0 – 12MHz from 1.6V
0 – 32MHz from 2.7V
Atmel-8386D-AVR-ATxmega64A3U-128A3U-192A3U-256A3U–03/2014
Free Datasheet http://www.Datasheet4U.com
1 page  
3.1 Block Diagram
Figure 3-1. XMEGA A3U block diagram.
Digital function
Analog function
Programming, debug, test
Oscillator/Crystal/Clock
General Purpose I/O
PR[0..1]
XTAL1
XTAL2
PORT R (2)
Oscillator
Circuits/
Clock
Generation
Real Time
Counter
Watchdog
Oscillator
PA[0..7]
PB[0..7]/
JTAG
PORT A (8)
ACA
ADCA
AREFA
Int. Refs.
Tempref
AREFB
ADCB
ACB
PORT B (8)
DACB
Event System
Controller
DMA
Controller
DATA BUS
SRAM
BUS Matrix
AES
DES
CRC
CPU
NVM Controller
Flash
Oscillator
Control
Sleep
Controller
Prog/Debug
Controller
OCD
Interrupt
Controller
EEPROM
Watchdog
Timer
Power
Supervision
POR/BOD &
RESET
PDI
JTAG
PORT B
USARTF0
TCF0
IRCOM
DATA BUS
EVENT ROUTING NETWORK
VCC
GND
RESET/
PDI_CLK
PDI_DATA
PF[0..7]
PORT C (8)
PORT D (8)
PC[0..7]
PD[0..7]
PORT E (8)
To Clock
Generator
TOSC1
TOSC2
PE[0..7]
XMEGA A3U [DATASHEET]
Atmel-8386D-AVR-ATxmega64A3U-128A3U-192A3U-256A3U–03/2014
5
Free Datasheet http://www.Datasheet4U.com
5 Page 
7.3 Flash Program Memory
The Atmel AVR XMEGA devices contain on-chip, in-system reprogrammable flash memory for program storage. The
flash memory can be accessed for read and write from an external programmer through the PDI or from application
software running in the device.
All AVR CPU instructions are 16 or 32 bits wide, and each flash location is 16 bits wide. The flash memory is organized
in two main sections, the application section and the boot loader section. The sizes of the different sections are fixed, but
device-dependent. These two sections have separate lock bits, and can have different levels of protection. The store
program memory (SPM) instruction, which is used to write to the flash from the application software, will only operate
when executed from the boot loader section.
The application section contains an application table section with separate lock settings. This enables safe storage of
nonvolatile data in the program memory.
Table 7-1. Flash Program Memory (Hexadecimal address).
Word Address
ATxmega256A3U
0
ATxmega192A3U
0
ATxmega128A3U
0
ATxmega64A3U
0
Application Section
(256K/192K/128K/64K)
1EFFF /
1F000 /
1FFFF /
20000 /
20FFF /
16FFF /
17000 /
17FFF /
18000 /
18FFF /
37FF /
EFFF /
F000 /
FFFF /
10000 /
77FF
7800
7FFF
8000
87FF
...
Application Table Section
(8K/8K/8K/4K)
Boot Section
(8K/8K/8K/4K)
7.3.1
Application Section
The Application section is the section of the flash that is used for storing the executable application code. The protection
level for the application section can be selected by the boot lock bits for this section. The application section can not store
any boot loader code since the SPM instruction cannot be executed from the application section.
7.3.2
Application Table Section
The application table section is a part of the application section of the flash memory that can be used for storing data.
The size is identical to the boot loader section. The protection level for the application table section can be selected by
the boot lock bits for this section. The possibilities for different protection levels on the application section and the
application table section enable safe parameter storage in the program memory. If this section is not used for data,
application code can reside here.
7.3.3
Boot Loader Section
While the application section is used for storing the application code, the boot loader software must be located in the boot
loader section because the SPM instruction can only initiate programming when executing from this section. The SPM
instruction can access the entire flash, including the boot loader section itself. The protection level for the boot loader
section can be selected by the boot loader lock bits. If this section is not used for boot loader software, application code
can be stored here.
XMEGA A3U [DATASHEET]
Atmel-8386D-AVR-ATxmega64A3U-128A3U-192A3U-256A3U–03/2014
11
Free Datasheet http://www.Datasheet4U.com
11 Page | ||
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