ATUC256L4U Atmel Corporation, ATUC256L4U Datasheet - Page 375
ATUC256L4U
Manufacturer Part Number
ATUC256L4U
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.ATUC128L4U.pdf
(960 pages)
4.ATUC128L4U.pdf
(92 pages)
Specifications of ATUC256L4U
Flash (kbytes)
256 Kbytes
Pin Count
48
Max. Operating Frequency
50 MHz
Cpu
32-bit AVR
# Of Touch Channels
17
Hardware Qtouch Acquisition
Yes
Max I/o Pins
36
Ext Interrupts
36
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
460
Analog Comparators
8
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.62 to 3.6
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
35
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATUC256L4U-D3HT
Manufacturer:
ATMEL
Quantity:
148
Part Number:
ATUC256L4U-D3HT
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATUC256L4U-U
Manufacturer:
ATMEL
Quantity:
129
Company:
Part Number:
ATUC256L4U-UES
Manufacturer:
ATMEL
Quantity:
3
Table of contents
32000D–04/2011
1
2
3
4
5
6
Feature Summary...................................................................................... 1
Introduction .............................................................................................. 2
Programming Model ................................................................................ 5
Java Extension Module ......................................................................... 27
Secure state ............................................................................................ 31
Memory Management Unit .................................................................... 35
Memory Protection Unit ........................................................................ 51
1.1
1.2
1.3
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
3.1
4.1
4.2
4.3
5.1
5.2
5.3
6.1
6.2
6.3
The AVR family ..................................................................................................2
Microarchitectures .............................................................................................4
Data Formats .....................................................................................................5
Data Organization ..............................................................................................5
Instruction Organization .....................................................................................6
Processor States ...............................................................................................7
Entry and Exit Mechanism .................................................................................8
Register File ......................................................................................................8
The Stack Pointer ............................................................................................10
The Program Counter ......................................................................................11
The Link Register ............................................................................................11
The Status Register .........................................................................................11
System registers ..............................................................................................14
Recommended Call Convention ......................................................................26
The AVR32 Java Virtual Machine ....................................................................27
Mechanisms implementing the Secure State ..................................................31
Secure state programming model ...................................................................32
Details on Secure State implementation .........................................................33
Memory map in systems with MMU .................................................................35
Understanding the MMU ..................................................................................37
Operation of the MMU and MMU exceptions ..................................................47
Memory map in systems with MPU .................................................................51
Understanding the MPU ..................................................................................51
Example of MPU functionality ..........................................................................55
The AVR32 Microprocessor Architecture .........................................................2
AVR32
i