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-
show all specifications
ATEVK1104 PDF datasheetAT32UC3A0128-ALUT PDF datasheet #2
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transfer. The address will be increased by either 1, 2 or 4 depending on the size of the DMA
transfer (Byte, Half-Word or Word). The Memory Address Register can be read at any time dur-
ing transfer.
21.4.3
Transfer Counter
Each channel has a 16-bit Transfer Counter Register (TCR). This register must be programmed
with the number of transferred to be performed. TCR should contain the number of data items to
be transferred independently of the transfer size. The Transfer Counter Register can be read at
any time during transfer to see the number of remaining transfers.
21.4.4
Reload Registers
Both the Memory Address Register and the Transfer Counter Register have a reload register,
respectively Memory Address Reload Register (MARR) and Transfer Counter Reload Register
(TCRR). These registers provide the possibility for the PDCA to work on two memory buffers for
each channel. When one buffer has completed, MAR and TCR will be reloaded with the values
in MARR and TCRR. The reload logic is always enabled and will trigger if the TCR reaches zero
while TCRR holds a non-zero value.
21.4.5
Peripheral Selection
The Peripheral Select Register decides which peripheral should be connected to the PDCA
channel. Configuring PSR will both select the direction of the transfer (memory to peripheral or
peripheral to memory), which handshake interface to use, and the address of the peripheral
holding register.
21.4.6
Transfer Size
The transfer size can be set individually for each channel to be either Byte, Half-Word or Word
(8-bit, 16-bit or 32-bit respectively). Transfer size is set by programming the SIZE bit-field in the
Mode Register (MR).
21.4.7
Enabling and Disabling
Each DMA channel is enabled by writing ‘1’ to the Transfer Enable bit (TEN) in the Control Reg-
ister (CR) and disabled by writing ‘1’ to the Transfer Disable bit (TDIS). The current status can
be read from the Status Register (SR).
21.4.8
Interrupts
Interrupts can be enabled by writing to the Interrupt Enable Register (IER) and disabled by writ-
ing to Interrupt Disable Register (IDR). The Interrupt Mask Register (IMR) can be read to see
whether an interrupt is enabled or not. The current status of an interrupt source can be read
through the Interrupt Status Register (ISR).
The PDCA has three interrupt sources:
• Reload Counter Zero - The Transfer Counter Reload Register is zero.
• Transfer Finished - Both the Transfer Counter Register and Transfer Counter Reload Register
are zero.
• Transfer Error - An error has occurred in accessing memory.
32058J–AVR32–04/11
AT32UC3A
155

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