AT32UC3B0256-A2UR Atmel, AT32UC3B0256-A2UR Datasheet - Page 68

• Manufacturer Part Number: AT32UC3B0256-A2UR
• Description: MCU AVR32 256K FLASH 64-TQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B0256-A2UR

• Package / Case: 64-TQFP, 64-VQFP
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 60MHz
• Number Of I /o: 44
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Core Size: 32-Bit
• Package: 64TQFP
• Device Core: AVR32
• Family Name: AT32
• Maximum Speed: 60 MHz
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 44
• Interface Type: I2S/SPI/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.6.17
Name:
Access Type:
Offset:
Reset Value:
• KEY: Register Write protection
• FCD: BOD Fuse calibration done
• CTRL: BOD Control
• HYST: BOD Hysteresis
• LEVEL: BOD Level
32059K–03/2011
31
23
15
7
-
-
-
• This field must be written twice, first with key value 0x55, then 0xAA, for a write operation to have an effect.
• Set to 1 when CTRL, HYST and LEVEL fields has been updated by the Flash fuses after power-on reset or Flash fuses
• 0: Allow subsequent overwriting of the value by Flash fuses.
• 1: The CTRL, HYST and LEVEL values will not be updated again by Flash fuses.
• 0: BOD is off.
• 1: BOD is enabled and can reset the chip.
• 2: BOD is enabled and but cannot reset the chip. Only interrupt will be sent to interrupt controller, if enabled in the IMR
• 3: BOD is off.
• 0: No hysteresis
• 1: Hysteresis On
• This field sets the triggering threshold of the BOD. See Electrical Characteristics for actual voltage levels.
• Note that any change to the LEVEL field of the BOD register should be done with the BOD deactivated to avoid spurious reset
update.
register.
or interrupt.
BOD Level Register
HYST
30
22
14
BOD
Read/Write
0x0D0
-
6
-
-
29
21
13
5
-
-
28
20
12
4
-
-
KEY
27
19
11
3
-
-
LEVEL
26
18
10
2
-
-
25
17
9
1
-
AT32UC3B
CTRL
FCD
24
16
8
0
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