SAM3N2C Atmel Corporation, SAM3N2C Datasheet - Page 427
SAM3N2C
Manufacturer Part Number
SAM3N2C
Description
Manufacturer
Atmel Corporation
Specifications of SAM3N2C
Flash (kbytes)
128 Kbytes
Pin Count
100
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
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)
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
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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• WPKEY: Write Protect KEY
Should be written at value 0x50494F (“PIO” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
26.7.47
Name:
Addresses:
Access:
Reset:
• WPVS: Write Protect Violation Status
0 = No Write Protect Violation has occurred since the last read of the PIO_WPSR register.
1 = A Write Protect Violation has occurred since the last read of the PIO_WPSR register. If this violation is an unauthorized
attempt to write a protected register, the associated violation is reported into field WPVSRC.
• WPVSRC: Write Protect Violation Source
When WPVS is active, this field indicates the write-protected register (through address offset or code) in which a write
access has been attempted.
Note:
11011A–ATARM–04-Oct-10
11011A–ATARM–04-Oct-10
31
—
23
15
—
7
Reading PIO_WPSR automatically clears all fields.
PIO Write Protect Status Register
30
—
22
14
—
PIO_WPSR
0x400E0EE8 (PIOA), 0x400E10E8 (PIOB), 0x400E12E8 (PIOC)
Read-only
See
6
Table 26-2
29
21
13
—
—
5
28
20
12
—
—
4
WPVSRC
WPVSRC
27
19
11
—
—
3
26
18
10
—
—
2
25
17
—
—
9
1
SAM3N
SAM3N
WPVS
24
16
—
8
0
427
427
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