AT32UC3L064-AUT Atmel, AT32UC3L064-AUT Datasheet - Page 535
![MCU AVR32 64KB FLASH 48TQFP](/photos/6/82/68248/313-48-vqfp_sml.jpg)
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
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23.6.4
23.6.5
23.6.5.1
32099F–11/2010
Duty Cycle and Waveform Properties
Updating Duty Cycle Values
Interlinked Single Value PWM Operation
When writing a one to CR.TCLR, the timebase counter and the spread spectrum counter are
reset at their lower limit values and the effective top value of the timebase counter will also be
reset.
Each PWM channel has its own duty cycle value (DCV) which is write-only and cannot be read
out. The duty cycle value can be changed in two approaches as described in Section23.6.5.
When the duty cycle value is zero, the PWM output is zero. Otherwise, the PWM output is set
when the timebase counter is zero, and cleared when the timebase counter reaches the duty
cycle value. This is summarized as:
Note that when increasing the duty cycle value for one channel from 0 to 1, the number of GCLK
cycles when the PWM waveform is high will jump from 0 to 2. When incrementing the duty cycle
value by one for any other values, the number of GCLK cycle when the waveform is high will
increase by one. This is summarized in
Table 23-2.
Every other output PWM waveform toggles on the negative edge of the GCLK instead of the
positive edge. This is to avoid too many I/O toggling simultaneously on the output I/O lines.
The PWM channels can be interlinked to allow multiple channels to be updated simultaneously
with the same duty cycle value. This value must be written to the Interlinked Single Value Duty
(ISDUTY) register. Each channel has a corresponding enabling bit in the Interlinked Single
Value Channel Set (ISCHSETm) register. When a bit is written to one in the ISCHSETm register,
the duty cycle register for the corresponding channel will be updated with the value stored in the
ISDUTY register. It can only be updated when the READY bit in the Status Register
(SR.READY) is one, indicating that the PWMA is ready for writing.
shows the writing procedure. It is thus possible to update the duty cycle values for up to 32 PWM
channels within one ISCHSETm register at a time.
Duty Cycle Value
0
1
2
...
ETV-1
ETV
PMW Waveform Duty Cycles
PWM Waveform =
#Clock Cycles
When Waveform is High
0
2
3
...
ETV
ETV+1
⎧
⎨
⎩
Table
high when TC DCV and DCV 0
low when DCV
23-2.
≤
=
AT32UC3L016/32/64
0 or TC DCV
#Clock Cycles
When Waveform is Low
ETV+1
ETV-1
ETV-2
...
1
0
>
≠
Figure 23-3 on page 536
535
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