AT32UC3A3256 Atmel Corporation, AT32UC3A3256 Datasheet - Page 100
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AT32UC3A3256
Manufacturer Part Number
AT32UC3A3256
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 AT32UC3A3256
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
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3A3256-ALU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT32UC3A3256-ALUR
Manufacturer:
ATMEL
Quantity:
1 500
Company:
Part Number:
AT32UC3A3256-ALUT
Manufacturer:
TST
Quantity:
430
Part Number:
AT32UC3A3256-ALUT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Company:
Part Number:
AT32UC3A3256-CTUT
Manufacturer:
ATMEL
Quantity:
2 757
Company:
Part Number:
AT32UC3A3256-U
Manufacturer:
ATMEL
Quantity:
89
Part Number:
AT32UC3A3256S-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
9.2.13
9.2.13.1
9.2.14
9.2.14.1
9.2.14.2
32002F–03/2010
Messages
Registers
Debug Status (DEBS)
Device ID Register (DID)
Nexus Configuration Register (NXCFG)
When an interrupt occurd the CPU will jump to the interrupt handler routine and process the
interrupt. The interrupt handler must clear the interrupt before leaving this routing. This is done
by witing a zero to DCEMUDI or DCCPURI for DCEMU reads and DCCPU writes respectively:
This message is output when the CPU enters or exits Debug Mode or a low-power mode. The
message is output whenever the AUX port is enabled. The STATUS field of this message con-
tains the information in the Development Status register. The field will contain these values:
Table 9-4.
The Device ID Register (DID) provides key attributes to the development tool concerning the
embedded processor. This is the same as the value returned by the JTAG ID instruction.
Table 9-5.
The Nexus Configuration Register (NXCFG) provides key information about the specific imple-
mentation of the CPU and OCD architecture, and the configuration of the Nexus development
Debug Status Message
Packet
Size
32
6
R/W
R
R
R
R
• Turn off the interrupt masks in the CPU
• The CPU enters Debug Mode: STATUS bits indicate cause of entry to Debug Mode. DBS is
• The CPU exits Debug Mode: STATUS = 0. This includes exiting Debug Mode by writing
• The CPU enters a low-power mode: Only the STP bit is set, while the other bits are zero.
• The CPU exits a low-power mode: STATUS = 0
set if OCD Mode was entered.
DC:RES.
Bit Number
31:28
27:12
11:1
0
Packet
Name
STATUS
TCODE
Debug Status
DID Register
Field Name
RN
PN
MID
Reserved
Packet
Type
Fixed
Fixed
Description
The contents of the Development Status register.
Value = 0
Init. Val.
Part
specific
Part
specific
0x01F
1
Description
RN - Revision Number
PN - Product Number
Manufacturer ID
0x01F = ATMEL
Reserved
This bit always reads as 1
AVR32
100