AT32UC3L064 Atmel Corporation, AT32UC3L064 Datasheet - Page 186

• Manufacturer Part Number: AT32UC3L064
• Manufacturer: Atmel Corporation

Specifications of AT32UC3L064

• Flash (kbytes): 64 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 50 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 460
• Analog Comparators: 8
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.62 to 3.6
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 35
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

13.4.2
13.4.3
13.4.4
13.4.5
13.5
13.5.1
32099G–06/2011
Functional Description
Power Management
Clocks
Interrupts
Debug Operation
Oscillator (OSC) Operation
with GPIO. When oscillators are used, the related pins are controlled directly by the SCIF, over-
riding GPIO settings.
RC32OUT will be outputted after reset, and can GPIO controller can assign this pin to other
peripheral function after start-up.
BODs, and all oscillators, except the 32 KHz oscillator (OSC32K) are turned off in some sleep
modes and turned automatically on when the chip wakes up. The Voltage Regulator is set in low
power mode in some sleep modes and automatically set back in normal mode when the chip
wakes up. Please refer to the Power Manager chapter for details.
The BOD control registers will not be reset by the Power Manager on a BOD reset.
The SCIF controls all oscillators in the device. The oscillators can be used as source for the CPU
and peripherals, selection of source is done in the Power Manager. The oscillator can also be
used as source for generic clocks.
The SCIF interrupt request line is connected to the interrupt controller. Using the SCIF interrupt
requires the interrupt controller to be programmed first.
The SCIF does not interact with debug operations.
Rev: 1.0.0.0
The main oscillator (OSCn) is designed to be used with an external 0.450 to 16MHz crystal and
two biasing capacitors, as shown in Electrical Characteristics chapter, or with an external clock
connected to the XIN. The oscillator can be used for the main clock in the device, as described
in the Power Manager chapter. The oscillator can be used as source for the generic clocks, as
described in the Generic Clocks section.
The oscillator is disabled by default after reset. When the oscillator is disabled, the XIN and
XOUT pins can be used as general-purpose I/Os. When the oscillator is configured to use an
external clock, the clock must be applied to the XIN pin while the XOUT pin can be used as gen-
eral purpose I/O.
The oscillator is enabled by writing a one to the Oscillator Enable (OSCEN) bit in Oscillator Con-
trol (OSCCTRLn) register. Operation mode (external clock or crystal) is chosen by writing to the
Oscillator Mode (MODE) bit in OSCCTRLn. The oscillator is automatically disabled in certain
sleep modes to reduce power consumption, as described in the Power Manager chapter.
After a hard reset, or when waking up from a sleep mode where the oscillators were disabled,
the oscillator will need a certain amount of time to stabilize on the correct frequency. This start-
up time can be set in the OSCCTRLn register.
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