ATEVK1105 Atmel, ATEVK1105 Datasheet - Page 81

• Manufacturer Part Number: ATEVK1105
• Description: KIT EVAL FOR AT32UC3A0
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

Specifications of ATEVK1105

• Contents: Evaluation Board, Software and Documentation
• Processor To Be Evaluated: AT32UC3A0512
• Processor Series: AVR
• Data Bus Width: 32 bit
• Interface Type: USART, TWI, USB, SPI, Ethernet
• Operating Supply Voltage: 3.3 V
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: AVR UC3
• Silicon Core Number: AT32UC3A0512
• Silicon Family Name: AVR
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT32UC3A0
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.6.11
BOD Level register
Register name
Register access
•
•
•
•
•
32058J–AVR32–04/11
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
If one, the CTRL, HYST and LEVEL values will not be updated again by Flash fuses
Can be cleared to allow subsequent overwriting of the value 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 Control
HYST
30
22
14
6
-
-
29
21
13
5
-
-
BOD
Read/Write
28
20
12
4
-
-
KEY
27
19
11
3
-
-
LEVEL
26
18
10
2
-
-
25
17
9
1
-
AT32UC3A
CTRL
FCD
24
16
8
0
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