SAM3S2C Atmel Corporation, SAM3S2C Datasheet - Page 33
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SAM3S2C
Manufacturer Part Number
SAM3S2C
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S2C
Flash (kbytes)
128 Kbytes
Pin Count
100
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
39
Hardware Qtouch Acquisition
No
Max I/o Pins
47
Ext Interrupts
47
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)
32
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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8.1
8.2
8.2.1
8.2.2
8.2.3
6500C–ATARM–8-Feb-11
System Controller and Peripherals Mapping
Power-on-Reset, Brownout and Supply Monitor
Power-on-Reset
Brownout Detector on VDDCORE
Supply Monitor on VDDIO
Please refer to
All the peripherals are in the bit band region and are mapped in the bit band alias region.
The SAM3S embeds three features to monitor, warn and/or reset the chip:
• Power-on-Reset on VDDIO
• Brownout Detector on VDDCORE
• Supply Monitor on VDDIO
The Power-on-Reset monitors VDDIO. It is always activated and monitors voltage at start up but
also during power down. If VDDIO goes below the threshold voltage, the entire chip is reset. For
more information, refer to the “Electrical Characteristics” section of the datasheet.
The Brownout Detector monitors VDDCORE. It is active by default. It can be deactivated by soft-
ware through the Supply Controller (SUPC_MR). It is especially recommended to disable it
during low-power modes such as wait or sleep modes.
If VDDCORE goes below the threshold voltage, the reset of the core is asserted. For more infor-
mation, refer to the “Supply Controller” and Electrical Characteristics sections of the datasheet.
The Supply Monitor monitors VDDIO. It is not active by default. It can be activated by software
and is fully programmable with 16 steps for the threshold (between 1.9V to 3.4V). It is controlled
by the Supply Controller (SUPC). A sample mode is possible. It allows to divide the supply mon-
itor power consumption by a factor of up to 2048. For more information, refer to the “SUPC” and
“Electrical Characteristics” sections of the datasheet.
Section 7-1 “SAM3S Product Mapping” on page
27.
SAM3S
33
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