ATUC128L4U Atmel Corporation, ATUC128L4U Datasheet - Page 753
ATUC128L4U
Manufacturer Part Number
ATUC128L4U
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.ATUC128L4U.pdf
(960 pages)
4.ATUC128L4U.pdf
(92 pages)
Specifications of ATUC128L4U
Flash (kbytes)
128 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 Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATUC128L4U-U
Manufacturer:
ATMEL
Quantity:
3 006
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- ATUC128L4U PDF datasheet #3
- ATUC128L4U PDF datasheet #4
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- Download datasheet (15Mb)
30.6.5.3
30.6.6
32142A–12/2011
Filtering
Window Mode Peripheral Events
When operating in window mode, each channel can generate the same peripheral events as in
normal mode, see
Additionally, when channels operate in window mode, programming Window Mode Event Selec-
tion Source (CONFWn.WEVSRC) can cause peripheral events to be generated when:
The output of the comparator can be filtered to reduce noise. The filter length is determined by
the Filter Length field in the CONFn register (CONFn.FLEN). The filter samples the Analog
Comparator output at the GCLK frequency for 2
counts the number of cycles the AC output was one. This filter is deactivated if CONFn.FLEN
equals 0.
If the filter is enabled, the Hysteresis Value field HYS in the CONFn register (CONFn.HYS) can
be used to define a hysteresis value. The hysteresis value should be chosen so that:
The filter function is defined by:
The filtering algorithm is explained in
ber of measurements that are zero is less than (2
number of measurements that are one is more than (2
Otherwise, the result is unchanged.
• As soon as the common input voltage is inside the window.
• As soon as the common input voltage is outside the window.
• On toggle of the window compare output (ACWOUT)
• Whenever a comparison is ready and the common input voltage is inside the window.
• Whenever a comparison is ready and the common input voltage is outside the window.
• When the comparison in both channels in the window pair is ready.
⎛
⎝
Section
2
--------------- -
FLEN
2
+
30.6.4.3.
HYS
CNT
CNT
⎞
⎠
CNT
⎛
⎝
Figure
⎛
⎝
2
--------------- -
2
--------------- - H
FLEN
FLEN
2
2
2
--------------- -
⎛
⎝
FLEN
2
--------------- - H
2
30-3. 2
+
– YS
FLEN
2
HYS
CONFn.FLEN
HYS
– YS
FLEN
⎞
⎠
⎞
⎠
FLEN
⇒
⇒
ATUC64/128/256L3/4U
/2 - HYS), the filtered result is zero. If the
comp
comp
⎞
⎠
FLEN
measurements are sampled. If the num-
⇒
samples. A separate counter (CNT)
/2 + HYS), the filtered result is one.
comp unchanged
=
=
0
1
753
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