AT32UC3A3256S Atmel Corporation, AT32UC3A3256S Datasheet - Page 31
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AT32UC3A3256S
Manufacturer Part Number
AT32UC3A3256S
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A3256S
Flash (kbytes)
256 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
AES
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A3256S-ALUT
Manufacturer:
MOLEX
Quantity:
20 000
Part Number:
AT32UC3A3256S-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
9. Frequently Asked Questions
7745C–AVR32–05/09
Q: How do I reprogram the bootloader to the original program and fuse settings?
A : C o n n e c t y o u r b o a r d t o y o u r P C u s i n g a J T A G I C E m k I I a n d e x e c u t e
. / p r o g r a m _ a t 3 2 u c 3 x - i s p - 1 . x . x . s h
PLES/ISP/AT32UC3X/Releases/AT32UC3X-ISP-1.X.X/
framework corresponding to your part. See Section 7.1 for further details.
Q: I want to program my own bootloader. How do I do that?
A: You can either replace Atmel’s bootloader with your own by changing the bootloader
sources in the
JTAGICE mkII or you can extend Atmel’s bootloader with your own by enlarging the
bootloader protected area specified by the BOOTPROT general-purpose fuse bits. See
Section 7.6.3.2 and Section 7.6.3.3 for further details.
Q: I do not want to use the bootloader and I want to use the first 8 kB of the flash
for my application. How do I do that?
A: Remove the bootloader with JTAGICE mkII by unprotecting and erasing the MCU
flash array with
your project to free the first 8 kB of the flash. See Section 7.6.3.1 for further details.
Q: I do not want any ISP I/O condition with my program. Can I still use the ISP?
A: ISP I/O conditions can be suppressed by setting the ISP_IO_COND_EN general-pur-
pose fuse bit to 0. The only way of reaching the ISP is then to set the ISP_FORCE
general-purpose fuse bit to 1 from the programmed application and to generate an MCU
hardware reset. See Section 6.2.1 and Section 7.2 for further details.
Q: I do not want to use the trampoline section from the software framework but I
still want to use the bootloader. Is it possible and where should I link my
application?
A: Remove the trampoline from your project by following the instructions in Section
7.6.3.1 and link your application as if the reset vector were at 80002000h instead of
80000000h. This can be achieved by modifying the linker script you use with GCC or
IAR. Your project will then be unusable with JTAGICE mkII.
SERVICES/USB/CLASS/DFU/EXAMPLES/ISP/
avr32program chiperase
. The trampoline should then be removed from
i n t h e
S E R V I C E S / U S B / C L A S S / D F U / E X A M -
folder and programming it with
folder of the UC3 software
31