ATxmega128A1 Atmel Corporation, ATxmega128A1 Datasheet - Page 6
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ATxmega128A1
Manufacturer Part Number
ATxmega128A1
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega128A1
Flash (kbytes)
128 Kbytes
Pin Count
100
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
78
Ext Interrupts
78
Usb Speed
No
Usb Interface
No
Spi
12
Twi (i2c)
4
Uart
8
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
4
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
8
Eeprom (bytes)
2048
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
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
8
Output Compare Channels
24
Input Capture Channels
24
Pwm Channels
24
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Manufacturer
Quantity
Price
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AT
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101
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8077H–AVR–12/09
Figure 3-1.
The Arithmetic Logic Unit (ALU) supports arithmetic and logic operations between registers or
between a constant and a register. Single register operations can also be executed in the ALU.
After an arithmetic operation, the Status Register is updated to reflect information about the
result of the operation.
The ALU is directly connected to the fast-access Register File. The 32 x 8-bit general purpose
working registers all have single clock cycle access time allowing single-cycle Arithmetic Logic
Unit (ALU) operation between registers or between a register and an immediate. Six of the 32
registers can be used as three 16-bit address pointers for program and data space addressing -
enabling efficient address calculations.
The memory spaces are all linear and regular memory maps. The Data Memory space and the
Program Memory space are two different memory spaces.
The Data Memory space is divided into I/O registers and SRAM. In addition the EEPROM can
be memory mapped in the Data Memory.
All I/O status and control registers reside in the lowest 4K bytes addresses of the Data Memory.
This is referred to as the I/O Memory space. The lowest 64 addresses can be accessed directly,
or as the data space locations from 0x00 - 0x3F. The rest is the Extended I/O Memory space,
ranging from 0x40 to 0x1FFF. I/O registers here must be access as data space locations using
load (LD/LDS/LDD) and store (ST/STS/STD) instructions.
Peripheral
Module 1
Block Diagram of the AVR Architecture
CONTROL
STATUS/
Program
Counter
OCD
Peripheral
Module n
Instruction
Instruction
Program
Register
Memory
Decode
Flash
DATA BUS
SRAM
DATA BUS
ALU
EEPROM
32 x 8 General
Registers
Multiplier/
Purpose
DES
PMIC
XMEGA A
6
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