AT32UC3B1128 Atmel Corporation, AT32UC3B1128 Datasheet - Page 28

• Manufacturer Part Number: AT32UC3B1128
• Manufacturer: Atmel Corporation

Specifications of AT32UC3B1128

• Flash (kbytes): 128 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 60 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 28
• Ext Interrupts: 28
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 6
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Operating Voltage (vcc): 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 10
• Output Compare Channels: 16
• Input Capture Channels: 6
• Pwm Channels: 13
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

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