ATAVRONEKIT Atmel, ATAVRONEKIT Datasheet - Page 19

• Manufacturer Part Number: ATAVRONEKIT
• Description: KIT AVR/AVR32 DEBUGGER/PROGRMMR
• Manufacturer: Atmel
• Series: AVR®r
• Type: Debuggerr

Specifications of ATAVRONEKIT

• Contents: Programmer/Debugger
• Processor To Be Evaluated: AVR32
• Data Bus Width: 32 bit
• Interface Type: ISP, JTAG
• Core Architecture: AVR
• Kit Contents: ATAVRONEKIT
• Tool / Board Applications: General Purpose MCU, MPU, DSP, DSC
• Development Tool Type: Hardware / Software - Dev Kit (Dev Tool)
• Rohs Compliant: Yes
• Mcu Supported Families: AVR32 32-bit MCU
• For Use With/related Products: AVR® Devices
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10. System Clock and Clock options
10.1
10.2
8067M–AVR–09/10
Features
Overview
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XMEGA A1 has an advanced clock system, supporting a large number of clock sources. It incor-
porates both integrated oscillators, external crystal oscillators and resonators. A high frequency
Phase Locked Loop (PLL) and clock prescalers can be controlled from software to generate a
wide range of clock frequencies from the clock source input.
It is possible to switch between clock sources from software during run-time. After reset the
device will always start up running from the 2 Mhz internal oscillator.
A calibration feature is available, and can be used for automatic run-time calibration of the inter-
nal 2 MHz and 32 MHz oscillators. This reduce frequency drift over voltage and temperature.
A Crystal Oscillator Failure Monitor can be enabled to issue a Non-Maskable Interrupt and
switch to internal oscillator if the external oscillator fails.
cipal clock system in XMEGA A1.
Fast start-up time
Safe run-time clock switching
Internal Oscillators:
External clock options
PLL with internal and external clock options with 1 to 31x multiplication
Clock Prescalers with 1 to 2048x division
Fast peripheral clock running at 2 and 4 times the CPU clock speed
Automatic Run-Time Calibration of internal oscillators
Crystal Oscillator failure detection
– 32 MHz run-time calibrated RC oscillator
– 2 MHz run-time calibrated RC oscillator
– 32.768 kHz calibrated RC oscillator
– 32 kHz Ultra Low Power (ULP) oscillator with 1 kHz ouput
– 0.4 - 16 MHz Crystal Oscillator
– 32 kHz Crystal Oscillator
– External clock
Figure 10-1 on page 20
XMEGA A1
shows the prin-
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