AT32UC3C064C Atmel Corporation, AT32UC3C064C Datasheet - Page 166
AT32UC3C064C
Manufacturer Part Number
AT32UC3C064C
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.AT32UC3C0128C.pdf
(1313 pages)
4.AT32UC3C0128C.pdf
(108 pages)
Specifications of AT32UC3C064C
Flash (kbytes)
64 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)
20
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
Available stocks
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- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3C0128C PDF datasheet #3
- AT32UC3C0128C PDF datasheet #4
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10.5.3
10.5.4
10.5.5
32117C–AVR-08/11
Disabling the WDT
Flash Calibration
Special Considerations
The WDT is disabled by writing a zero to the CTRL.EN bit. When disabling the WDT no other
bits in the CTRL Register should be changed until the CTRL.EN bit reads back as zero. If the
CTRL.CEN bit is written to zero, the CTRL.EN bit will never read back as zero if changing the
value from one to zero.
The WDT can be enabled at reset. This is controlled by the WDTAUTO fuse. The WDT will be
set in basic mode, RCSYS is set as source for CLK_CNT, and PSEL will be set to a value giving
T
how to program the fuses.
If the Flash Calibration Done (FCD) bit in the CTRL Register is zero at a watchdog reset the
flash calibration will be redone, and the CTRL.FCD bit will be set when the calibration is done. If
CTRL.FCD is one at a watchdog reset, the configuration of the WDT will not be changed during
flash calibration. After any other reset the flash calibration will always be done, and the
CTRL.FCD bit will be set when the calibration is done.
Care must be taken when selecting the PSEL/TBAN values so that the timeout period is greater
than the startup time of the chip. Otherwise a watchdog reset will reset the chip before any code
has been run. This can also be avoided by writing the CTRL.DAR bit to one when configuring
the WDT.
If the Store Final Value (SFV) bit in the CTRL Register is one, the CTRL Register is locked for
further write accesses. All writes to the CTRL Register will be ignored. Once the CTRL Register
is locked, it can only be unlocked by a reset (e.g. POR, OCD, and WDT).
The CTRL.MODE bit can only be changed when the WDT is disabled (CTRL.EN=0).
psel
above 100 ms. Please refer to the Fuse Settings chapter for details about WDTAUTO and
AT32UC3C
166
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