AT32UC3C2256C Atmel Corporation, AT32UC3C2256C Datasheet - Page 967

• Manufacturer Part Number: AT32UC3C2256C
• Manufacturer: Atmel Corporation

Specifications of AT32UC3C2256C

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 45
• Ext Interrupts: 64
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Can: 2
• Lin: 4
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 68
• Self Program Memory: YES
• Dram Memory: No
• 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: 3
• Output Compare Channels: 13
• Input Capture Channels: 6
• Pwm Channels: 14
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

33.6
33.6.1
Figure 33-2. Functional View of the Clock Generator Block Diagram
32117C–AVR-08/11
Functional Description
PWM Clock Generator
CLK_PWM
GCLK
The PWM Controller is primarily composed of a clock generator module and 4 channels.
• The clock generator module provides 13 clocks. Its source clock is chosen according to the
• Each channel can independently choose one of the clock generator outputs.
• Each channel generates an output waveform with attributes that can be defined
CLKSEL bit in the Clock Register (CLK). It allows to select:
independently for each channel through the user interface registers.
CLKSEL
– CLK_PWM: the master clock (clock of the peripheral bus to which the PWM is
– GCLK: the generic clock (high frequency clock which is asynchronous to
connected)
CLK_PWM)
CCK
modulo n counter
PREA
PREB
CCK
CCK/2
CCK/4
CCK/8
CCK/16
CCK/32
CCK/64
CCK/128
CCK/256
CCK/512
CCK/1024
Divider
Divider
DIVA
DIVB
A
B
clkA
clkB
AT32UC3C
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