SAM3S1A Atmel Corporation, SAM3S1A Datasheet - Page 1035

• Manufacturer Part Number: SAM3S1A
• Manufacturer: Atmel Corporation

Specifications of SAM3S1A

• Flash (kbytes): 64 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 64 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 17
• 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: 2
• Twi (i2c): 2
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1000
• Analog Comparators: 1
• Resistive Touch Screen: No
• 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

40.7.12
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).
The protected registers are:
• WPKEY: Write Protect KEY
This security code is needed to set/reset the WPROT bit value (see
Must be filled with “DAC” ASCII code.
6500C–ATARM–8-Feb-11
DACC Mode Register
DACC Channel Enable Register
DACC Channel Disable Register
DACC Analog Current Register
31
23
15
7
–
DACC Write Protect Mode Register
30
22
14
DACC_WPMR
0x4003C0E4
Read-write
6
–
29
21
13
5
–
28
20
12
4
–
WPKEY
WPKEY
WPKEY
27
19
11
Section 40.6.8 ”Write Protection Registers”
3
–
26
18
10
2
–
25
17
9
1
–
SAM3S
for details).
WPEN
24
16
8
0
1035