AT32UC3L032-ZAUT Atmel, AT32UC3L032-ZAUT Datasheet - Page 401

• Manufacturer Part Number: AT32UC3L032-ZAUT
• Description: IC MCU AVR32 32KB FLASH 48VQFN
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3L032-ZAUT

• 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: 32KB (32K 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-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• 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: 10 bit, 9 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

19.6.12
32099F–11/2010
Write Protection Registers
To prevent any single software error that may corrupt USART behavior, certain address spaces
can be write-protected by setting the WPEN bit in the USART Write Protect Mode Register
(WPMR).
If a write access to the protected registers is detected, then the WPVS flag in the USART Write
Protect Status Register (WPSR) is set and the field WPVSRC indicates in which register the
write access has been attempted.
The WPVS flag is reset by writing the USART Write Protect Mode Register (WPMR) with the
appropriate access key, WPKEY.
The protected registers are:
•
•
•
•
”Mode Register” on page 405
”Baud Rate Generator Register” on page 415
”Receiver Time-out Register” on page 416
”Transmitter Timeguard Register” on page 417
AT32UC3L016/32/64
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