AT32UC3L064-AUT Atmel, AT32UC3L064-AUT Datasheet - Page 313
AT32UC3L064-AUT
Manufacturer Part Number
AT32UC3L064-AUT
Description
MCU AVR32 64KB FLASH 48TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.AT32UC3L-EK.pdf
(858 pages)
3.AT32UC3L016-D3HT.pdf
(110 pages)
Specifications of AT32UC3L064-AUT
Core Processor
AVR
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 3.6 V
Data Converters
A/D 9x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP, 48-VQFP
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
SPI/TWI/USART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
36
Number Of Timers
7
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL
Development Tools By Supplier
AT32UC3L-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
9-ch x 10-bit
Package
48TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
50 MHz
Operating Supply Voltage
1.8|3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3L064-AUT
Manufacturer:
HONGFA
Quantity:
30 000
Part Number:
AT32UC3L064-AUT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- Current page: 313 of 858
- Download datasheet (13Mb)
17.5.1.1
17.5.2
17.5.3
32099F–11/2010
Measurement
Interrupts
Cautionary note
Note that if clock selected as source for CLK_REF is stopped during a measurement, this will
not be detected by the FREQM. The BUSY bit in the STATUS register will never be cleared, and
the DONE interrupt will never be triggered. If the clock selected as soruce for CLK_REF is
stopped, it will not be possible to change the source for the reference clock as long as the
selected source is not running.
In the Mode Register the Clock Source Selection (CLKSEL) field selects CLK_MSR and the
Number of Reference Clock Cycles (REFNUM) field selects the duration of the measurement.
The duration is given in number of CLK_REF periodes.
Writing a one to the START bit in the Control Register (CTRL) starts the measurement. The
BUSY bit in SR is cleared when the measurement is done.
The result of the measurement can be read from the Value Register (VALUE). The frequency of
the measured clock CLK_MSR is then:
The FREQM has two interrupt sources:
These will generate an interrupt request if the corresponding bit in the Interrupt Mask Register
(IMR) is set. The interrupt sources are ORed together to form one interrupt request. The FREQM
will generate an interrupt request if at least one of the bits in the Interrupt Mask Register (IMR) is
set. Bits in IMR are set by writing a one to the corresponding bit in the Interrupt Enable Register
(IER) and cleared by writing a one to this bit in the Interrupt Disable Register (IDR). The interrupt
request remains active until the corresponding bit in the Interrupt Status Register (ISR) is
cleared by writing a one to this bit in the Interrupt Clear Register (ICR). Because all the interrupt
sources are ORed together, the interrupt request from the FREQM will remain active until all the
bits in ISR are cleared.
• Write a zero to the MODE.REFCEN to disable he clock, without changing the other bits/fields
• Wait until the SR.RCLKBUSY bit reads as zero.
• DONE: A frequency measurement is done
• RCLKRDY: The reference clock is ready
in the Mode register.
f
CLK_MSR
= (VALUE/REFNUM)*f
CLK_REF
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