AT32UC3A3128 Atmel Corporation, AT32UC3A3128 Datasheet - Page 28

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AT32UC3A3128

Manufacturer Part Number
AT32UC3A3128
Description
Manufacturer
Atmel Corporation

Specifications of AT32UC3A3128

Flash (kbytes)
128 Kbytes
Pin Count
144
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
110
Ext Interrupts
110
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
16
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
128
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
12
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes

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28
AVR32
The AVR32 Java Virtual Machine software loads and controls the execution of the Java classes.
The bytecodes are executed in hardware, except for some instructions, for example the instruc-
tions that create or manipulate objects. These are trapped and executed in software within the
Java Virtual Machine.
Figure 3-2.
Figure 3-3 on page 29
boots in AVR32 (RISC) state and it executes applications as a normal RISC processor. To
invoke a Java program, the Java Virtual Machine is called like any other application. The Java
Virtual Machine will execute an init routine followed by a class loader that parses the class and
initializes all registers necessary to start executing the Java program. The last instruction in the
AVR32 Java Virtual Machine
Heap
Method Area
Threads
Objects
Classes
Frames
Class Variables
Local Variables
Constant Pool
Overview of the AVR32 Java Virtual Machine and the Java Extension Module.
The grey area represent the software parts of the virtual machine, while the white
box to the right represents the hardware module.
Methods
Header
Stack
shows one example on how a Java program is executed. The processor
Const. Pool
Meta Data
Attributes
PC, SP
Pointer
Data
Bytecodes
Bytecodes
Scheduler
Collector
Garbage
Trapped
Trapped
Object
Other
AVR32 Java
Extension
Module
32000D–04/2011

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