SAM3S1B Atmel Corporation, SAM3S1B Datasheet - Page 406
SAM3S1B
Manufacturer Part Number
SAM3S1B
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S1B
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
23
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Transceiver
1
Quadrature Decoder Channels
1
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
10
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
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
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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23.15.9
Register Name:
Access Type:
Reset Value:
• WPVS: Write Protect Enable
0 = No Write Protect Violation has occurred since the last read of the SMC_WPSR register.
1 = A Write Protect Violation occurred since the last read of the SMC_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:
406
31
23
15
—
—
7
Reading SMC_WPSR automatically clears all fields.
SAM3S
SMC Write Protect Status Register
30
22
14
—
—
Read-only
See
6
SMC_WPSR
Table 23-7
29
21
13
—
—
5
28
—
20
12
—
4
WPVSRC
WPVSRC
27
19
11
—
—
3
26
—
18
10
—
2
25
17
—
—
9
1
6500C–ATARM–8-Feb-11
WPVS
24
—
16
8
0
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