AT32UC3C0256C Atmel Corporation, AT32UC3C0256C Datasheet - Page 75

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AT32UC3C0256C

Manufacturer Part Number
AT32UC3C0256C
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of AT32UC3C0256C

Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
123
Ext Interrupts
144
Usb Transceiver
1
Quadrature Decoder Channels
2
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
7
Twi (i2c)
3
Uart
5
Can
2
Lin
5
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
4
Dac Resolution (bits)
12
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
68
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6 or 4.5 to 5.5
Operating Voltage (vcc)
3.0 to 3.6 or 4.5 to 5.5
Fpu
Yes
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
22
Input Capture Channels
12
Pwm Channels
20
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes

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Atmel
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8.3.1.15
8.3.1.16
8.3.1.17
32000D–04/2011
Breakpoint Exception
Illegal Opcode
Unimplemented Instruction
The Breakpoint exception is issued when a breakpoint instruction is executed, or the OCD
breakpoint input line to the CPU is asserted, and SREG[DM] is cleared.
An external debugger can optionally assume control of the CPU when the Breakpoint Exception
is executed. The debugger can then issue individual instructions to be executed in Debug mode.
Debug mode is exited with the retd instruction. This passes control from the debugger back to
the CPU, resuming normal execution.
This exception is issued when the core fetches an unknown instruction, or when a coprocessor
instruction is not acknowledged. When entering the exception routine, the return address on
stack points to the instruction that caused the exception.
This exception is issued when the core fetches an instruction supported by the instruction set
but not by the current implementation. This allows software implementations of unimplemented
instructions. When entering the exception routine, the return address on stack points to the
instruction that caused the exception.
RSR_DBG = SR;
RAR_DBG = PC;
SR[R] = 0;
SR[J] = 0;
SR[M2:M0] = B’110;
SR[D] = 1;
SR[DM] = 1;
SR[EM] = 1;
SR[GM] = 1;
PC = EVBA + 0x1C;
*(--SP
*(--SP
SR[R] = 0;
SR[J] = 0;
SR[M2:M0] = B’110;
SR[EM] = 1;
SR[GM] = 1;
PC = EVBA + 0x20;
*(--SP
*(--SP
SR[R] = 0;
SR[J] = 0;
SR[M2:M0] = B’110;
SR[EM] = 1;
SR[GM] = 1;
PC = EVBA + 0x24;
SYS
SYS
SYS
SYS
) = PC;
) = SR;
) = PC;
) = SR;
AVR32
75

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