SAM3N1C Atmel Corporation, SAM3N1C Datasheet - Page 374
SAM3N1C
Manufacturer Part Number
SAM3N1C
Description
Manufacturer
Atmel Corporation
Specifications of SAM3N1C
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
48 MHz
Cpu
Cortex-M3
# Of Touch Channels
17
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
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
16
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)
8
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
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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24.15.19 PMC Write Protect Mode Register
Name:
Address:
Access:
Reset:
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x504D43 (“PMC” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x504D43 (“PMC” in ASCII).
Protects the registers:
• WPKEY: Write Protect KEY
Should be written at value 0x504D43 (“PMC” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
374
•
•
•
•
•
•
•
•
•
•
•
“PMC System Clock Enable Register” on page 355
“PMC System Clock Disable Register” on page 355
“PMC Peripheral Clock Enable Register” on page 357
“PMC Peripheral Clock Disable Register” on page 358
“PMC Clock Generator Main Oscillator Register” on page 360
“PMC Clock Generator PLL Register” on page 363
“PMC Master Clock Register” on page 364
“PMC Programmable Clock Register” on page 365
“PMC Fast Startup Mode Register” on page 371
“PMC Fast Startup Polarity Register” on page 372
“PMC Oscillator Calibration Register” on page 376
31
23
15
7
–
SAM3N
PMC_WPMR
0x400E04E4
Read-write
See
Table 24-2
30
22
14
6
–
29
21
13
5
–
28
20
12
4
–
WPKEY
WPKEY
WPKEY
27
19
11
3
–
26
18
10
2
–
25
17
9
1
–
11011A–ATARM–04-Oct-10
WPEN
24
16
8
0
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