AT32UC3L064-AUT Atmel, AT32UC3L064-AUT Datasheet - Page 430
AT32UC3L064-AUT
Manufacturer Part Number
AT32UC3L064-AUT
Description
MCU AVR32 64KB FLASH 48TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.AT32UC3L-EK.pdf
(858 pages)
3.AT32UC3L016-D3HT.pdf
(110 pages)
Specifications of AT32UC3L064-AUT
Core Processor
AVR
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 3.6 V
Data Converters
A/D 9x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP, 48-VQFP
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
SPI/TWI/USART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
36
Number Of Timers
7
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL
Development Tools By Supplier
AT32UC3L-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
9-ch x 10-bit
Package
48TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
50 MHz
Operating Supply Voltage
1.8|3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3L064-AUT
Manufacturer:
HONGFA
Quantity:
30 000
Part Number:
AT32UC3L064-AUT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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Figure 20-4. SPI Transfer Format (NCPHA = 0, 8 bits per transfer)
20.7.3
32099F–11/2010
SPCK cycle (for reference)
Master Mode Operations
(from master)
(from slave)
(CPOL = 0)
(CPOL = 1)
(to slave)
SPCK
SPCK
MOSI
MISO
NSS
When configured in master mode, the SPI uses the internal programmable baud rate generator
as clock source. It fully controls the data transfers to and from the slave(s) connected to the SPI
bus. The SPI drives the chip select line to the slave and the serial clock signal (SPCK).
The SPI features two holding registers, the Transmit Data Register (TDR) and the Receive Data
Register (RDR), and a single Shift Register. The holding registers maintain the data flow at a
constant rate.
After enabling the SPI, a data transfer begins when the processor writes to the TDR register.
The written data is immediately transferred in the Shift Register and transfer on the SPI bus
starts. While the data in the Shift Register is shifted on the MOSI line, the MISO line is sampled
and shifted in the Shift Register. Transmission cannot occur without reception.
Before writing to the TDR, the Peripheral Chip Select field in TDR (TDR.PCS) must be written in
order to select a slave.
If new data is written to TDR during the transfer, it stays in it until the current transfer is com-
pleted. Then, the received data is transferred from the Shift Register to RDR, the data in TDR is
loaded in the Shift Register and a new transfer starts.
The transfer of a data written in TDR in the Shift Register is indicated by the Transmit Data Reg-
ister Empty bit in the Status Register (SR.TDRE). When new data is written in TDR, this bit is
cleared. The SR.TDRE bit is used to trigger the Transmit Peripheral DMA Controller channel.
The end of transfer is indicated by the Transmission Registers Empty bit in the SR register
(SR.TXEMPTY). If a transfer delay (CSRn.DLYBCT) is greater than zero for the last transfer,
SR.TXEMPTY is set after the completion of said delay. The CLK_SPI can be switched off at this
time.
During reception, received data are transferred from the Shift Register to the reception FIFO.
The FIFO can contain up to 4 characters (both Receive Data and Peripheral Chip Select fields).
While a character of the FIFO is unread, the Receive Data Register Full bit in SR remains high
(SR.RDRF). Characters are read through the RDR register. If the four characters stored in the
FIFO are not read and if a new character is stored, this sets the Overrun Error Status bit in the
SR register (SR.OVRES). The procedure to follow in such a case is described in
20.7.3.8.
***
1
*** Not Defined, but normaly LSB of previous character transmitted
MSB
MSB
2
6
6
3
5
5
4
4
4
5
3
3
6
2
2
7
AT32UC3L016/32/64
1
1
8
LSB
LSB
Section
430
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