SAM3N2B Atmel Corporation, SAM3N2B Datasheet - Page 693

• Manufacturer Part Number: SAM3N2B
• Manufacturer: Atmel Corporation

Specifications of SAM3N2B

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• 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: 3
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 10
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• 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

34.7.8
Name:
Address:
Access:
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x444143 (“DAC” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x444143 (“DAC” in ASCII).
Protects the
• WPKEY: Write Protect KEY
This security code is needed to set/reset the WPROT bit value (see
Must be filled with “DAC” ASCII code.
693
31
23
15
7
–
SAM3N
DACC Write Protect Mode Register
DACC Mode
30
22
14
DACC_WPMR
0x4003C0E4
Read-write
6
–
Register.
29
21
13
5
–
28
20
12
4
–
WPKEY
WPKEY
WPKEY
27
19
11
Section 34.6.7 ”Write Protection Registers”
3
–
26
18
10
2
–
25
17
9
1
–
11011A–ATARM–04-Oct-10
for details).
WPEN
24
16
8
0