SAM3S1C Atmel Corporation, SAM3S1C Datasheet - Page 40
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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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SAM3S
Figure 10-1. Typical Cortex-M3 implementation
The Cortex-M3 processor is built on a high-performance processor core, with a 3-stage pipeline
Harvard architecture, making it ideal for demanding embedded applications. The processor
delivers exceptional power efficiency through an efficient instruction set and extensively opti-
mized design, providing high-end processing hardware including single-cycle 32x32
multiplication and dedicated hardware division.
To facilitate the design of cost-sensitive devices, the Cortex-M3 processor implements tightly-
coupled system components that reduce processor area while significantly improving interrupt
handling and system debug capabilities. The Cortex-M3 processor implements a version of the
Thumb
The Cortex-M3 instruction set provides the exceptional performance expected of a modern 32-
bit architecture, with the high code density of 8-bit and 16-bit microcontrollers.
The Cortex-M3 processor closely integrates a configurable nested interrupt controller (NVIC), to
deliver industry-leading interrupt performance. The NVIC provides up to 16 interrupt priority lev-
els. The tight integration of the processor core and NVIC provides fast execution of interrupt
service routines (ISRs), dramatically reducing the interrupt latency. This is achieved through the
hardware stacking of registers, and the ability to suspend load-multiple and store-multiple opera-
tions. Interrupt handlers do not require any assembler stubs, removing any code overhead from
the ISRs. Tail-chaining optimization also significantly reduces the overhead when switching from
one ISR to another.
To optimize low-power designs, the NVIC integrates with the sleep modes, that include a deep
sleep function that enables the entire device to be rapidly powered down.
• enhanced system debug with extensive breakpoint and trace capabilities
• efficient processor core, system and memories
• ultra-low power consumption with integrated sleep modes
• platform security, with integrated memory protection unit (MPU).
®
instruction set, ensuring high code density and reduced program memory requirements.
Cortex-M3
Processor
NVIC
Access
Debug
Interface
Port
Code
Flash
Patch
Protection Unit
Bus Matrix
Processor
Memory
Core
Watchpoints
Peripheral Interface
Data
SRAM and
Viewer
Serial
Wire
6500C–ATARM–8-Feb-11
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