AT32UC3C1256C Atmel Corporation, AT32UC3C1256C Datasheet - Page 806
AT32UC3C1256C
Manufacturer Part Number
AT32UC3C1256C
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 AT32UC3C1256C
Flash (kbytes)
256 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)
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
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:
AT32UC3C1256C-AUR
Manufacturer:
LORLIN
Quantity:
1 000
Company:
Part Number:
AT32UC3C1256C-AUT
Manufacturer:
ATMEL
Quantity:
1 001
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30.6.5
30.6.6
32117C–AVR-08/11
TDM Reception and Transmission Sequence
Serial Clock and Word Select Generation
In Time Division Multiplexed (TDM) format, 1 to 8 data words are sent or received within each
frame, As in the I
transmitted first, starting one clock period after the transition on the Word Select line. Each time
slot is 32-bit long.
Figure 30-3. TDM Reception and Transmission Sequence
Data bits are sent on the falling edge of the Serial Clock and sampled on the rising edge of the
Serial Clock. The IWS pin provides a frame synchronization signal, starting one ISCK period
before the MSB of channel 0.
The Time Division Multiplexed (TDM) format is selected by writing a one to the MR.FORMAT
field.
The Frame Sync pulse can be either one ISCK period or one 32-bit time slot. This selection is
done by writing the MR.TDMFS bit.
The number of channels is selected by writing the MR.CHANNELS field.
The length of transmitted words can be chosen among 8, 16, 18, 20, 24, and 32 bits by writing
the MR.DATALENGTH field.
If the time slot allows for more data bits than programmed in the MR.DATALENGTH field, zeroes
are appended to the transmitted data word or extra received bits are discarded. If the time slot
allows for less data bits than programmed, the extra bits to be transmitted are not sent or the
missing bits are set to zero in the right-adjusted received data word.
The generation of clocks in the IISC is described in
In Slave mode, the Serial Clock and Word Select Clock are driven by an external master. ISCK
and IWS pins are inputs and no generic clock is required by the IISC.
In Master mode, the user can configure the Master Clock, Serial Clock, and Word Select Clock
through the Mode Register (MR). IMCK, ISCK, and IWS pins are outputs and a generic clock is
used to derive the IISC clocks.
Audio codecs connected to the IISC pins may require a Master Clock signal with a frequency
multiple of the audio sample frequency (fs), such as 256fs. When the IISC is in Master mode,
writing a one to MR.IMCKMODE will output GCLK_IISC as Master Clock to the IMCK pin, and
will divide GCLK_IISC to create the internal bit clock, output on the ISCK pin. The clock division
factor is defined by writing to MR.IMCKFS and MR.DATALENGTH, as described
Master Clock to fs Ratio” on page
Serial Clock (ISCK)
Frame sync (IWS)
Data (ISDI/ISDO)
2
S protocol, data bits are left-adjusted in the channel time slot, with the MSB
MSB
Channel 0
LSB
814.
MSB
Channel 1
LSB
Figure 30-4 on page
MSB
Channel 2
LSB
808.
AT32UC3C
MSB
Channel 3
LSB
”IMCKFS:
806
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