SAM3S1C Atmel Corporation, SAM3S1C Datasheet - Page 849
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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6500C–ATARM–8-Feb-11
The PWM master clock (MCK) is divided in the clock generator module to provide different
clocks available for all channels. Each channel can independently select one of the divided
clocks.
The clock generator is divided in three blocks:
Each linear divider can independently divide one of the clocks of the modulo n counter. The
selection of the clock to be divided is made according to the PREA (PREB) field of the PWM
Clock register (PWM_CLK). The resulting clock clkA (clkB) is the clock selected divided by DIVA
(DIVB) field value.
After a reset of the PWM controller, DIVA (DIVB) and PREA (PREB) are set to 0. This implies
that after reset clkA (clkB) are turned off.
At reset, all clocks provided by the modulo n counter are turned off except clock ”MCK”. This sit-
uation is also true when the PWM master clock is turned off through the Power Management
Controller.
CAUTION:
• Before using the PWM macrocell, the programmer must first enable the PWM clock in the
Power Management Controller (PMC).
– a modulo n counter which provides 11 clocks: F
– two linear dividers (1, 1/2, 1/3, ... 1/255) that provide two separate clocks: clkA and
F
clkB
MCK
/16, F
MCK
/32, F
MCK
/64, F
MCK
/128, F
MCK
/256, F
MCK
MCK
, F
MCK
/512, F
/2, F
MCK
MCK
/1024
/4, F
MCK
/8,
SAM3S
849
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