AT32UC3B1128 Atmel Corporation, AT32UC3B1128 Datasheet - Page 517
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AT32UC3B1128
Manufacturer Part Number
AT32UC3B1128
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3B0128.pdf
(684 pages)
5.AT32UC3B0128.pdf
(107 pages)
Specifications of AT32UC3B1128
Flash (kbytes)
128 Kbytes
Pin Count
48
Max. Operating Frequency
60 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
28
Ext Interrupts
28
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
3
Twi (i2c)
1
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
6
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0-3.6 or (1.65-1.95+3.0-3.6)
Operating Voltage (vcc)
3.0-3.6 or (1.65-1.95+3.0-3.6)
Fpu
No
Mpu / Mmu
Yes / No
Timers
10
Output Compare Channels
16
Input Capture Channels
6
Pwm Channels
13
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3B1128-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3B0128 PDF datasheet #4
- AT32UC3B0128 PDF datasheet #5
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24.6.2
24.6.2.1
Figure 24-3. Functional View of the Channel Block Diagram
24.6.2.2
32059L–AVR32–01/2012
PWM Channel
Block Diagram
Waveform Properties
Inputs from
Inputs from
Peripheral
generator
clock
Bus
divided clocks.
The clock generator is divided in three blocks:
Each linear divider can independently divide one of the clocks of the modulo n counter. The
selection of the clock to be divided is made according to the PREA (PREB) field of the Mode reg-
ister (MR). The resulting clock clkA (clkB) is the clock selected divided by DIVA (DIVB) field
value in the Mode register (MR).
After a reset of the PWM controller, DIVA (DIVB) and PREA (PREB) in the Mode register are
cleared. This implies that after reset clkA (clkB) are turned off.
At reset, all clocks provided by the modulo n counter are turned off except clock “clk”. This situa-
tion is also true when the PWM master clock is turned off through the Power Manager .
Each of the
The different properties of output waveforms are:
• A clock selector which selects one of the clocks provided by the clock generator described in
• An internal counter clocked by the output of the clock selector. This internal counter is
• A comparator used to generate events according to the internal counter value. It also
• the internal clock selection. The internal channel counter is clocked by one of the clocks
Selector
Channel
Section
incremented or decremented according to the channel configuration and comparators
events. The size of the internal counter is
computes the PWMx output waveform according to the configuration.
provided by the clock generator described in the previous section. This channel parameter is
defined in the CPRE field of the CMRx register. This field is reset at 0.
Clock
– a modulo n counter which provides 11 clocks: F
– two linear dividers (1, 1/2, 1/3, ... 1/255) that provide two separate clocks: clkA and
F
F
clkB
CLK_PWM
CLK_PWM
24.6.1.
7
channels is composed of three blocks:
/8, F
/512, F
CLK_PWM
Counter
Internal
CLK_PWM
/16, F
/1024
CLK_PWM
/32, F
Comparator
20
bits.
CLK_PWM
CLK_PWM
/64, F
CLK_PWM
, F
CLK_PWM
/128, F
PWMx output
waveform
/2, F
CLK_PWM
CLK_PWM
/256,
/4,
517
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