SAM3U2C Atmel Corporation, SAM3U2C Datasheet - Page 901
SAM3U2C
Manufacturer Part Number
SAM3U2C
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U2C
Flash (kbytes)
128 Kbytes
Pin Count
100
Max. Operating Frequency
96 MHz
Cpu
Cortex-M3
# Of Touch Channels
28
Hardware Qtouch Acquisition
No
Max I/o Pins
57
Ext Interrupts
57
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
4
Twi (i2c)
1
Uart
4
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
36
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
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
Both types of Write Protect can be applied independently to a particular register group by means
of the WPCMD and WPRG fields in PWM_WPCR register. If at least one Write Protect is active,
the register group is write-protected. The field WPCMD allows to perform the following actions
depending on its value:
At any time, the user can determine which Write Protect is active in which register group by the
fields WPSWS and WPHWS in the
(PWM_WPSR).
If a write access in a write-protected register is detected, then the WPVS flag in the
PWM_WPSR register is set and the field WPVSRC indicates in which register the write access
has been attempted, through its address offset without the two LSBs.
The WPVS and PWM_WPSR fields are automatically reset after reading the PWM_WPSR
register.
• 0 = Disabling the Write Protect SW of the register groups of which the bit WPRG is at 1.
• 1 = Enabling the Write Protect SW of the register groups of which the bit WPRG is at 1.
• 2 = Enabling the Write Protect HW of the register groups of which the bit WPRG is at 1.
“PWM Write Protect Status Register” on page 936
SAM3U Series
SAM3U Series
901
901
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