AT32UC3B1256-AUR Atmel, AT32UC3B1256-AUR Datasheet - Page 68

• Manufacturer Part Number: AT32UC3B1256-AUR
• Description: MCU AVR32 256K FLASH 48-TQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B1256-AUR

• Package / Case: 48-TQFP, 48-VQFP
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 60MHz
• Number Of I /o: 28
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Core Size: 32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.6.17
Name:
Access Type:
Offset:
Reset Value:
•
•
•
•
•
32059J–12/2010
KEY: Register Write protection
FCD: BOD Fuse calibration done
CTRL: BOD Control
HYST: BOD Hysteresis
LEVEL: BOD Level
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 update.
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 register.
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
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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