AT32UC3C164C Atmel Corporation, AT32UC3C164C Datasheet - Page 1051
AT32UC3C164C
Manufacturer Part Number
AT32UC3C164C
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 AT32UC3C164C
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
81
Ext Interrupts
100
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
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
6
Output Compare Channels
22
Input Capture Channels
12
Pwm Channels
19
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3C164C-AUR
Manufacturer:
ATMEL
Quantity:
1 240
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34.6.1.4
34.6.1.5
34.6.1.6
34.6.1.7
Figure 34-5. Quadrature Clock and Direction Decoding (TOP.PCTOP = 4)
32117C–AVR-08/11
Position counter
Index detection
Revolution counter
Waveforms
CNTDIR
QPulse
QEPA
QEPB
The 16-bit position counter is incremented or decremented on every count pulse, generated by
the quadrature decoder module. The counting direction is displayed in SR.CNTDIR.
If the position counter reaches the TOP.PCTOP value when counting up or the 0 value when
counting down, the counter wraps around. The Position Counter Roll Over (PCRO) interrupt is
generated.
Usually, the TOP.PCTOP value should always be set to the total number of quadrature states
minus one, which is (quadrature_encoder_lines_count *4) -1.
The optional index signal QEPI may be used to correct the position counter if quadrature states
have been missed due to noise. If the Index Enable bit (CF.IDXE) is written to one, detection of
the QEPI signal will reset the position counter to 0 on a selected phase of quadrature signals.
This selected phase is configured via the Detection Phase field (CF.IDXPHS).
The Index Error (IDXERR) interrupt is triggered if the index detection occurs and the position
counter value is not 0.
The revolution counter is incremented/decremented each time the position counter rolls over. It
rolls over when it reaches the TOP.RCTOP value.
PC
RC
0
1
0
2
3
4
0
1
1
2
1
0
4
3
0
2
1
AT32UC3C
1051
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