SAM3N2A Atmel Corporation, SAM3N2A Datasheet - Page 376

• Manufacturer Part Number: SAM3N2A
• Manufacturer: Atmel Corporation

Specifications of SAM3N2A

• Flash (kbytes): 128 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 48 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 23
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 47
• Ext Interrupts: 47
• Quadrature Decoder Channels: 2
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 2
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

24.15.21 PMC Oscillator Calibration Register
Name:
Address:
Access:
This register can only be written if the WPEN bit is cleared in
• CAL4: RC Oscillator Calibration bits for 4 MHz
Calibration bits applied to the RC Oscillator when SEL4 is set.
• SEL4: Selection of RC Oscillator Calibration bits for 4 MHz
0 = Default value stored in Flash memory.
1 = Value written by user in CAL4 field of this register.
• CAL8: RC Oscillator Calibration bits for 8 MHz
Calibration bits applied to the RC Oscillator when SEL8 is set.
• SEL8: Selection of RC Oscillator Calibration bits for 8 MHz
0 = Factory determined value stored in Flash memory.
1 = Value written by user in CAL8 field of this register.
• CAL12: RC Oscillator Calibration bits for 12 MHz
Calibration bits applied to the RC Oscillator when SEL12 is set.
• SEL12: Selection of RC Oscillator Calibration bits for 12 MHz
0 = Factory determined value stored in Flash memory.
1 = Value written by user in CAL12 field of this register.
376
SEL12
SEL8
SEL4
31
23
15
–
7
SAM3N
0x400E0510
PMC_OCR
Read-Write
30
22
14
–
6
29
21
13
–
5
28
20
12
–
4
“PMC Write Protect Mode Register” on page
CAL12
CAL8
CAL4
27
19
11
–
3
26
18
10
–
2
25
17
–
9
1
11011A–ATARM–04-Oct-10
374.
24
16
–
8
0