SAM3S2C Atmel Corporation, SAM3S2C Datasheet - Page 141
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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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10.18.4
10.18.4.1
10.18.4.2
10.18.4.3
10.18.4.4
6500C–ATARM–8-Feb-11
DSB ; Data Synchronisation Barrier
DSB
Syntax
Operation
Condition flags
Examples
Data Synchronization Barrier.
where:
cond
DSB acts as a special data synchronization memory barrier. Instructions that come after the
DSB, in program order, do not execute until the DSB instruction completes. The DSB instruction
completes when all explicit memory accesses before it complete.
This instruction does not change the flags.
DSB{cond}
is an optional condition code, see
“Conditional execution” on page
84.
SAM3S
141
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