AT32UC3C2512C Automotive Atmel Corporation, AT32UC3C2512C Automotive Datasheet - Page 86
AT32UC3C2512C Automotive
Manufacturer Part Number
AT32UC3C2512C Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.AT32UC3C0512C_AUTOMOTIVE.pdf
(1312 pages)
3.AT32UC3C0512C_AUTOMOTIVE.pdf
(107 pages)
- AT90CAN128_AUTOMOTIVE PDF datasheet
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #2
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #3
- Current page: 86 of 1312
- Download datasheet (20Mb)
8.5.7
8.5.8
8.5.9
9166C–AVR-08/11
5V Brown Out Detection (BOD50)
Bandgap
Voltage Regulators
If the JTAG or the AWIRE is enabled, the BOD33 reset and interrupt will be masked.
See Electrical Characteristics for parametric details.
To prevent unexpected writes due to software bugs, write access to this register is protected by
a locking mechanism, for details please refer to the UNLOCK register description.
The 5V Brown-Out Detector (BOD50) monitors the VDDIN_5 supply pin and compares the sup-
ply voltage to the brown-out detection level, as set in BOD50.LEVEL. The BOD50 is disabled by
default, but can be enabled by software. The 5V Brown-Out Detector can generate an interrupt
when the supply voltage is below the brown-out detection level. In any case, the BOD50 output
value is given by the PCLKSR.BOD50DET bit.
Note that any change to the BOD50.LEVEL field of the BOD50 register should be done with the
BOD50 deactivated to avoid spurious interrupt. When turned-on, the BOD50 output will be
masked during one half of a RCSYS clock cycle and two main clocks cycles to avoid false
results.
If the JTAG or the AWIRE is enabled, the BOD50 interrupt will be masked.
See Electrical Characteristics for parametric details.
To prevent unexpected writes due to software bugs, write access to this register is protected by
a locking mechanism, for details please refer to the UNLOCK register description.
The Flash memory, the Brown-Out Detectors need a stable voltage reference to operate. This
reference voltage is provided by an internal Bandgap voltage reference. This reference is auto-
matically turned on at startup and turned off during DEEPSTOP and STATIC sleep modes to
save power.
The Bandgap voltage reference is calibrated through the BGCR.CALIB field. This field is loaded
after a Power On Reset with default values stored in factory-programmed flash fuses.
It is not recommended to override default factory settings as it may prevent correct operation of
the Flash and BODs. To prevent unexpected writes due to software bugs, write access to this
register is protected by a locking mechanism, for details please refer to the UNLOCK register
description.
The embedded 1.8V regulator provides the core supply. The embedded 3.3V voltage regulator
is used to supply the USB pads. Both regulators are turned on at startup.
If the application is supplied with a voltage range around 3.3V or the application does not use
the USB interface, the 3.3V voltage regulator has to be turned off by writing 11 binary to
VREGCTRL.VREG33CTL.
The 1.8V voltage regulator has its own voltage reference that is calibrated through the
VREGCR.CALIB field. This field is loaded after a Power On Reset with default values stored in
factory-programmed flash fuses.
Although it is not recommended, it is still possible to override the default factory settings by writ-
ing to those registers. To prevent unexpected writes due to software bugs, write access to this
register is protected by a locking mechanism, for details please refer to the UNLOCK register
description.
AT32UC3C
86
Related parts for AT32UC3C2512C Automotive
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: