SAM3S1C Atmel Corporation, SAM3S1C Datasheet - Page 466
SAM3S1C
Manufacturer Part Number
SAM3S1C
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S1C
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
39
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Transceiver
1
Quadrature Decoder Channels
2
Usb Speed
Full Speed
Usb Interface
Device
Spi
3
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
1000
Analog Comparators
1
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
YES
External Bus Interface
1
Dram Memory
No
Nand Interface
Yes
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
Yes / 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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26.16.21 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.
466
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•
•
•
•
“PMC System Clock Enable Register” on page 444
“PMC System Clock Disable Register” on page 445
“PMC Peripheral Clock Enable Register 0” on page 447
“PMC Peripheral Clock Disable Register 0” on page 448
“PMC Clock Generator Main Oscillator Register” on page 450
“PMC Clock Generator PLLA Register” on page 453
“PMC Clock Generator PLLB Register” on page 454
“PMC Master Clock Register” on page 455
“PMC USB Clock Register” on page 456
“PMC Programmable Clock Register” on page 457
“PMC Fast Startup Mode Register” on page 463
“PMC Fast Startup Polarity Register” on page 464
“PMC Peripheral Clock Enable Register 1” on page 468
“PMC Peripheral Clock Disable Register 1” on page 469
“PMC Oscillator Calibration Register” on page 471
31
23
15
—
7
SAM3S
PMC_WPMR
0x400E04E4
Read-write
See
Table 26-3
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
6500C–ATARM–8-Feb-11
WPEN
24
16
8
0
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