AT32UC3L-EK Atmel, AT32UC3L-EK Datasheet - Page 193

• Manufacturer Part Number: AT32UC3L-EK
• Description: KIT EVAL AVR32 UC3 MCU
• Manufacturer: Atmel
• Type: MCUr

Specifications of AT32UC3L-EK

• Contents: *
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: UC3L
• Kit Contents: Board
• Features: USB / Battery Powered, Board Controller / Bootloader
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Tool Type: Starter Kit
• Cpu Core: AVR 8
• Data Bus Width: 8 bit
• Processor Series: AT32
• Processor To Be Evaluated: AT32UC3L064
• Interface Type: USB, Capacitive Touch
• For Use With/related Products: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.5.5
13.5.6
32099F–11/2010
Bandgap
System RC Oscillator (RCSYS)
The BOD is powered by VDDIO and will not be powered during Shutdown sleep mode.
Figure 13-5. BOD Block Diagram
The Flash memory, the BOD, and the Temperature Sensor need a stable voltage reference to
operate. This reference voltage is provided by an internal Bandgap voltage reference. This refer-
ence is automatically turned on at start-up and turned off during some sleep modes to save
power. The Bandgap reference is powered by VDDIO and will not be powered during Shutdown
sleep mode. Please refer to the Power Manager chapter for details.
Rev: 1.0.1.0
The system RC oscillator has a startup time of 3 cycles, and is always available except in some
sleep modes. Please refer to the Power Manager chapter for details. The system RC oscillator
operates at a nominal frequency of 115 kHz, and is calibrated using the Calibration Value field
(CALIB) in the RC Oscillator Calibration Register (RCCR). After a Power-On Reset (POR), the
RCCR.CALIB field is loaded with a factory defined value stored in the Flash fuses. Please refer
to the Fuse setting chapter for more details about RCCR fuses and how to program the fuses.
If the Flash Calibration Done (FCD) bit in the RCCR is zero at any reset except for POR and
POR33, then the flash calibration will be redone and the RCCR.FCD bit will be set before pro-
POR18
POWER MANAGER(PM)
VDDCORE
AT32UC3L016/32/64
SCIF
BOD
INTC
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