AT32UC3C2128C Atmel Corporation, AT32UC3C2128C Datasheet - Page 1108
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AT32UC3C2128C
Manufacturer Part Number
AT32UC3C2128C
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 AT32UC3C2128C
Flash (kbytes)
128 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)
36
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3C2128C-A2UR
Manufacturer:
ATMEL
Quantity:
1 043
Part Number:
AT32UC3C2128C-Z2UR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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36.6.4.5
36.6.4.6
32117C–AVR-08/11
Sequencer start/stop mode
Sequencer free running-mode
Thanks to the Software Acknowledge bit (SA) in the SEQCFGx register, the behavior of
sequencer x at the end of a sequence can be configured.
Table 36-6.
The Sequencer x Overrun Error bit (OVRx) in SR register indicates that an overrun error
occurred in the sequencer x. This means that the RES0 register has not been read while a new
sequence is starting. Events such as end-of-sequence or end-of-conversion can be caught by
interrupt servicing or polling routines thanks to the SEOSx and SEOCx bits in the SR register.
Only SEQ0 has the free-running mode capability. In free-running mode the ADC continuously
converts analog values configured in the sequencer. In this mode, the sequence restarts auto-
matically after each end of sequence without waiting for the last conversion to finish. This mode
is configured by setting the Free Running Mode (FRM) bit in the CFG register. The conversion
sequence will start on the first SOC defined by the Trigger Selection (TRGSEL) field in the
SEQCFG0 register. In this mode only SEQ0 is running once triggered.
When converting at full speed the sequencer always wait for the last conversion to be finished to
rise the sequencer end of sequence status bit (EOS).
sequence running. When the third channel is sampled the sequencer has to wait for the pipeline
to be flushed. This takes SRES/2+3-SHD clock cycles. To avoid this you can run that sequence
in free running mode. Please refer to
waiting for the pipeline to be flushed but the user will have to read the converted value before it
is overwritten by a new conversion.
Figure 36-4. Not Using FRM and Converting at Full Speed
SA
0
1
Comment
The sequencer waits for software acknowledge.
Acknowledge is done by writing a 1 in the SEOSx bit of the SCR register.
The sequencer will restart automatically a new sequence on a new SOC.
Results will be overwritten if not processed.
Sequencer Start/Stop Mode
Figure
36-5. The sequencer will run the sequence without
Figure 36-4
shows a 3 conversions
AT32UC3C
1108
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