IC MCU AVR32 128KB FLASH 144LQFP

AT32UC3A0128-ALUT

Manufacturer Part NumberAT32UC3A0128-ALUT
DescriptionIC MCU AVR32 128KB FLASH 144LQFP
ManufacturerAtmel
SeriesAVR®32 UC3
AT32UC3A0128-ALUT datasheets
 


Specifications of AT32UC3A0128-ALUT

Core ProcessorAVRCore Size32-Bit
Speed66MHzConnectivityEBI/EMI, Ethernet, I²C, SPI, SSC, UART/USART, USB OTG
PeripheralsBrown-out Detect/Reset, POR, PWM, WDTNumber Of I /o109
Program Memory Size128KB (128K x 8)Program Memory TypeFLASH
Ram Size32K x 8Voltage - Supply (vcc/vdd)1.65 V ~ 1.95 V
Data ConvertersA/D 8x10bOscillator TypeInternal
Operating Temperature-40°C ~ 85°CPackage / Case144-LQFP
Processor SeriesAT32UC3xCoreAVR32
Data Bus Width32 bitData Ram Size32 KB
Interface Type2-Wire, RS-485, SPI, USARTMaximum Clock Frequency66 MHz
Number Of Programmable I/os69Number Of Timers3
Maximum Operating Temperature+ 85 CMounting StyleSMD/SMT
3rd Party Development ToolsEWAVR32, EWAVR32-BL, KSK-EVK1100-PLDevelopment Tools By SupplierATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATEXTWIFI, ATEVK1100, ATEVK1105
Minimum Operating Temperature- 40 CController Family/seriesAT32UC3A
No. Of I/o's109Ram Memory Size32KB
Cpu Speed66MHzNo. Of Timers1
Rohs CompliantYesFor Use WithATEVK1105 - KIT EVAL FOR AT32UC3A0ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMR770-1008 - ISP 4PORT ATMEL AVR32 MCU SPIATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
Lead Free Status / RoHS StatusLead free / RoHS CompliantEeprom Size-
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23.7.3.3
Clock Generation
The SPI Baud rate clock is generated by dividing the Master Clock (MCK) or the Master Clock
divided by 32, by a value between 1 and 255. The selection between Master Clock or Master
Clock divided by 32 is done by the FDIV value set in the Mode Register
This allows a maximum operating baud rate at up to Master Clock and a minimum operating
baud rate of MCK divided by 255*32.
Programming the SCBR field at 0 is forbidden. Triggering a transfer while SCBR is at 0 can lead
to unpredictable results.
At reset, SCBR is 0 and the user has to program it at a valid value before performing the first
transfer.
The divisor can be defined independently for each chip select, as it has to be programmed in the
SCBR field of the Chip Select Registers. This allows the SPI to automatically adapt the baud
rate for each interfaced peripheral without reprogramming.
23.7.3.4
Transfer Delays
Figure 23-7
select. Three delays can be programmed to modify the transfer waveforms:
• The delay between chip selects, programmable only once for all the chip selects by writing the
DLYBCS field in the Mode Register. Allows insertion of a delay between release of one chip
select and before assertion of a new one.
• The delay before SPCK, independently programmable for each chip select by writing the field
DLYBS. Allows the start of SPCK to be delayed after the chip select has been asserted.
• The delay between consecutive transfers, independently programmable for each chip select by
writing the DLYBCT field. Allows insertion of a delay between two transfers occurring on the
same chip select
These delays allow the SPI to be adapted to the interfaced peripherals and their speed and bus
release time.
Figure 23-7. Programmable Delays
Chip Select 1
Chip Select 2
SPCK
32058J-AVR32-04/11
shows a chip select transfer change and consecutive transfers on the same chip
DLYBCS
DLYBS
AT32UC3A
DLYBCT
DLYBCT
201