AT32UC3A3128 Atmel Corporation, AT32UC3A3128 Datasheet - Page 68
AT32UC3A3128
Manufacturer Part Number
AT32UC3A3128
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 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
Available stocks
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Quantity
Price
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Part Number:
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20 000
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11
- AT32UC3A0128 PDF datasheet
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8.3.1
8.3.1.1
8.3.1.2
68
AVR32
Description of events in AVR32A
Reset Exception
OCD Stop CPU Exception
The addresses of the interrupt routines are calculated by adding the address on the autovector
offset bus to the value of the Exception Vector Base Address (EVBA). The INT0, INT1, INT2,
INT3, and NMI signals indicate the priority of the pending interrupt. INT0 has the lowest priority,
and NMI the highest priority of the interrupts. Implementations may require that EVBA is aligned
in an IMPLEMENTATION DEFINED way in order to support autovectoring.
The Reset exception is generated when the reset input line to the CPU is asserted. The Reset
exception can not be masked by any bit. The Reset exception resets all synchronous elements
and registers in the CPU pipeline to their default value, and starts execution of instructions at
address 0x8000_0000.
All other system registers are reset to their reset value, which may or may not be defined. Refer
to the Programming Model chapter for details.
The OCD Stop CPU exception is generated when the OCD Stop CPU input line to the CPU is
asserted. The OCD Stop CPU exception can not be masked by any bit. This exception is identi-
cal to a non-maskable, high priority breakpoint. Any subsequent operation is controlled by the
OCD hardware. The OCD hardware will take control over the CPU and start to feed instructions
directly into the pipeline.
SR = reset_value_of_SREG;
PC = 0x8000_0000;
RSR_DBG = SR;
RAR_DBG = PC;
SR[M2:M0] = B’110;
SR[R] = 0;
SR[J] = 0;
SR[D] = 1;
SR[DM] = 1;
SR[EM] = 1;
SR[GM] = 1;
32000D–04/2011
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