AT32UC3A464S Atmel Corporation, AT32UC3A464S Datasheet - Page 408
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AT32UC3A464S
Manufacturer Part Number
AT32UC3A464S
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A464S
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
AES
Sram (kbytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A464S-U
Manufacturer:
ATMEL
Quantity:
551
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3A3128 PDF datasheet #4
- AT32UC3A3128 PDF datasheet #5
- Current page: 408 of 1012
- Download datasheet (16Mb)
21.7.3.1
Figure 21-5. Master Mode Block Diagram
32072G–11/2011
Master mode block diagram
CLK_SPI
In master mode, if the received data is not read fast enough compared to the transfer rhythm
imposed by the write accesses in the TDR, some overrun errors may occur, even if the FIFO is
enabled. To insure a perfect data integrity of received data (especially at high data rate), the
mode Wait Data Read Before Transfer can be enabled in the MR register (MR.WDRBT). When
this mode is activated, no transfer starts while received data remains unread in the RDR. When
data is written to the TDR and if unread received data is stored in the RDR, the transfer is
paused until the RDR is read. In this mode no overrun error can occur. Please note that if this
mode is enabled, it is useless to activate the FIFO in reception.
ure 21-6 on page 409
Figure 21-5 on page
NPCS0
MISO
MR
TDR
PCS
PCS
MSTR
CSR0..3
CSR0..3
PS
LSB
Baud Rate Generator
408shows a block diagram of the SPI when operating in master mode.
0
1
shows a flow chart describing how transfers are handled.
NCPHA
CPOL
BITS
SCBR
PCSDEC
CSR0..3
Clock
SPI
Shift Register
CSNAAT
CSAAT
TDR
RXFIFOEN
Peripheral
Current
RXFIFOEN
MODFDIS
TD
0
1
0
1
MSB
RDR
4 – Character FIFO
RDR
4 – Character FIFO
TDRE
MODF
RD
NPCS3
NPCS2
NPCS1
NPCS0
MOSI
SPCK
OVRES
RDRF
Fig-
408
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