AT32UC3A3128-ALUT Atmel, AT32UC3A3128-ALUT Datasheet - Page 894
![IC MCU 128KB FLASH 144LQFP](/photos/6/72/67244/144l1-lqfp_sml.jpg)
AT32UC3A3128-ALUT
Manufacturer Part Number
AT32UC3A3128-ALUT
Description
IC MCU 128KB FLASH 144LQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3A3128-ALUT
Core Processor
AVR
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, POR, WDT
Number Of I /o
110
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
96 KB
Interface Type
IrDA/SCI/SCIF/UDI
Maximum Clock Frequency
66 MHz
Number Of Timers
3
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL, KSK-EVK1100-PL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATEXTWIFI, ATEVK1104
Minimum Operating Temperature
- 40 C
Controller Family/series
AT32UC3A
No. Of I/o's
109
Ram Memory Size
32KB
Cpu Speed
66MHz
No. Of Timers
1
Rohs Compliant
Yes
For Use With
ATEVK1104 - KIT DEV/EVAL FOR AVR32 AT32UC3AATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
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:
AT32UC3A3128-ALUT
Manufacturer:
Atmel
Quantity:
135
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32.3.2
32.3.3
32.4
32.4.1
32072C–AVR32–2010/03
Functional Description
Clocks
Interrupts
Operation Modes
The clock for the AES bus interface (CLK_AES) is generated by the Power Manager. This clock
is enabled at reset, and can be disabled in the Power Manager. It is recommended to disable the
AES before disabling the clock, to avoid freezing the AES in an undefined state.
The AES interrupt request line is connected to the interrupt controller. Using the AES interrupt
requires the interrupt controller to be programmed first.
The AES specifies a FIPS-approved cryptographic algorithm that can be used to protect elec-
tronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and
decrypt (decipher) information.
Encryption converts data to an unintelligible form called ciphertext. Decrypting the ciphertext
converts the data back into its original form, called plaintext. The Processing Mode bit in the
Mode Register (MR.CIPHER) allows selection between the encryption and the decryption
processes.
The AES is capable of using cryptographic keys of 128/192/256 bits to encrypt and decrypt data
in blocks of 128 bits. This 128-bit/192-bit/256-bit key is defined in the KEYWnR Registers
(KEYWnR).
The input to the encryption processes of the CBC, CFB, and OFB modes includes, in addition to
the plaintext, a 128-bit data block called the initialization vector, which must be writing in the Ini-
tialization Vector Registers (IVnR). The initialization vector is used in an initial step in the
encryption of a message and in the corresponding decryption of the message. The IVRnR regis-
ters are also used in the CTR mode to set the counter value.
The AES supports the following modes of operation:
The data pre-processing, post-processing and chaining for the concerned modes are automati-
cally performed. Refer to the NIST Special Publication 800-38A Recommendation for more
complete information.
These modes are selected by writing the Operation Mode field in the Mode Register
(MR.OPMOD).
In CFB mode, five data size are possible (8 bits, 16 bits, 32 bits, 64 bits or 128 bits).
• ECB: Electronic Code Book
• CBC: Cipher Block Chaining
• OFB: Output Feedback
• CFB: Cipher Feedback
• CTR: Counter
– CFB8 (CFB where the length of the data segment is 8 bits)
– CFB16 (CFB where the length of the data segment is 16 bits)
– CFB32 (CFB where the length of the data segment is 32 bits)
– CFB64 (CFB where the length of the data segment is 64 bits)
– CFB128 (CFB where the length of the data segment is 128 bits)
AT32UC3A3/A4
894
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