ATUC128L4U Atmel Corporation, ATUC128L4U Datasheet - Page 624

• Manufacturer Part Number: ATUC128L4U
• Manufacturer: Atmel Corporation

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

25.7.1
Name:
Access Type:
Offset :
Reset Value:
•
•
•
•
32142A–12/2011
SPREAD: Spread Spectrum Limit Value
TOP: Timebase Counter Top Value
TCLR: Timebase Clear
EN: Module Enable
31
23
15
7
-
-
The spread spectrum limit value, together with the TOP field, defines the range for the spread spectrum counter. It is introduced
in order to achieve constant varying duty cycles on the output PWM waveforms. Refer to
The top value for the timebase counter. The value written to this field will update the least significant 8 bits of the TVR.TOP field
in case only 8-bits resolution is required. The 4 most significant bits of TVR.TOP will be written to 0. When the TVR.TOP field is
written, this CR.TOP field will also be updated with only the least significant 8 bits of TVR.TOP field.
Writing a zero to this bit has no effect.
Writing a one to this bit will clear the timebase counter.
This bit is always read as zero.
0: The PWMA is disabled
1: The PWMA is enabled
Control Register
30
22
14
6
-
-
CR
Read/Write
0x00
0x00000000
29
21
13
5
-
-
28
20
12
4
-
-
SPREAD[7:0]
TOP
27
19
11
3
-
-
ATUC64/128/256L3/4U
26
18
10
2
-
-
Section25.6.3
TCLR
25
17
9
1
-
for more information.
SPREAD[8]
EN
24
16
8
0
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