AT32UC3L064-AUT Atmel, AT32UC3L064-AUT Datasheet - Page 435
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
- Current page: 435 of 858
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20.7.3.8
32099F–11/2010
FIFO management
to an interrupt, and thus might lead to difficulties for interfacing with some serial peripherals
requiring the chip select line to remain active during a full set of transfers.
To facilitate interfacing with such devices, the CSRn registers can be configured with the Chip
Select Active After Transfer bit written to one (CSRn.CSAAT) . This allows the chip select lines
to remain in their current state (low = active) until transfer to another peripheral is required.
When the CSRn.CSAAT bit is written to qero, the NPCS does not rise in all cases between two
transfers on the same peripheral. During a transfer on a Chip Select, the SR.TDRE bit rises as
soon as the content of the TDR is transferred into the internal shifter. When this bit is detected
the TDR can be reloaded. If this reload occurs before the end of the current transfer and if the
next transfer is performed on the same chip select as the current transfer, the Chip Select is not
de-asserted between the two transfers. This might lead to difficulties for interfacing with some
serial peripherals requiring the chip select to be de-asserted after each transfer. To facilitate
interfacing with such devices, the CSRn registers can be configured with the Chip Select Not
Active After Transfer bit (CSRn.CSNAAT) written to one. This allows to de-assert systematically
the chip select lines during a time DLYBCS. (The value of the CSRn.CSNAAT bit is taken into
account only if the CSRn.CSAAT bit is written to zero for the same Chip Select).
Figure 20-8 on page 436
CSRn.CSAAT and CSRn.CSNAAT bits.
A FIFO has been implemented in Reception FIFO (both in master and in slave mode), in order to
be able to store up to 4 characters without causing an overrun error. If an attempt is made to
store a fifth character, an overrun error rises. If such an event occurs, the FIFO must be flushed.
There are two ways to Flush the FIFO:
After that, the SPI is able to receive new data.
• By performing four read accesses of the RDR (the data read must be ignored)
• By writing a one to the Flush Fifo Command bit in the CR register (CR.FLUSHFIFO).
shows different peripheral deselection cases and the effect of the
AT32UC3L016/32/64
435
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