AT32UC3L0256 Atmel Corporation, AT32UC3L0256 Datasheet - Page 343

• Manufacturer Part Number: AT32UC3L0256
• Manufacturer: Atmel Corporation

Specifications of AT32UC3L0256

• Flash (kbytes): 256 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 Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• 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

17.7
32145A–12/2011
Module Configuration
The specific configuration for each FREQM instance is listed in the following tables. The module
bus clocks listed here are connected to the system bus clocks. Please refer to the Power Man-
ager chapter for details.
Table 17-2.
Table 17-3.
Table 17-4.
Table 17-5.
Module Name
FREQM
Register
VERSION
CLKSEL
0
1
2
3
4
5
6
7
8
9-18
19
20
21
22-31
REFSEL
0
Clock/Oscillator
CLK_CPU
CLK_HSB
CLK_PBA
CLK_PBB
OSC0
OSC32K
RCSYS
DFLL0
Reserved
GCLK0-9
RC120M AW clock
RC120M
RC32K
Reserved
Clock/Oscillator
RCSYS
FREQM Clock Name
Register Reset Values
Clock Sources for CLK_MSR
Clock Sources for CLK_REF
Reset Value
0x00000310
Clock Name
CLK_FREQM
CLK_MSR
CLK_REF
Description
The clock the CPU runs on
High Speed Bus clock
Peripheral Bus A clock
Peripheral Bus B clock
Output clock from Oscillator 0
Output clock from OSC32K
Output clock from RCSYS Oscillator
Output clock from DFLL0
Generic clock 0 through 9
Output clock from RC120M to AW
Output clock from RC120M to main clock mux
Output clock from RC32K
Description
System RC oscillator clock
AT32UC3L0128/256
Description
Bus interface clock
Measured clock
Reference clock
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