SAM3S1B Atmel Corporation, SAM3S1B Datasheet - Page 28
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SAM3S1B
Manufacturer Part Number
SAM3S1B
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S1B
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
23
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Transceiver
1
Quadrature Decoder Channels
1
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
10
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
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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7.2
7.2.1
7.2.2
7.2.3
7.2.3.1
7.2.3.2
7.2.3.3
28
Embedded Memories
SAM3S
Internal SRAM
Internal ROM
Embedded Flash
Flash Overview
Flash Power Supply
Enhanced Embedded Flash Controller
The ATSAM3S4 product (256-Kbyte internal Flash version) embeds a total of 48 Kbytes high-
speed SRAM.
The ATSAM3S2 product (128-Kbyte internal Flash version) embeds a total of 32 Kbytes high-
speed SRAM.
The ATSAM3S1 product (64-Kbyte internal Flash version) embeds a total of 16 Kbytes high-
speed SRAM.
The SRAM is accessible over System Cortex-M3 bus at address 0x2000 0000.
The SRAM is in the bit band region. The bit band alias region is mapped from 0x2200 0000 to
0x23FF FFFF.
The SAM3S product embeds an Internal ROM, which contains the SAM Boot Assistant (SAM-
BA), In Application Programming routines (IAP) and Fast Flash Programming Interface (FFPI).
At any time, the ROM is mapped at address 0x0080 0000.
The Flash of the ATSAM3S4 (256-Kbytes internal Flash version) is organized in one bank of
1024 pages (Single plane) of 256 bytes.
The Flash of the ATSAM3S2 (128-Kbytes internal Flash version) is organized in one bank of 512
pages (Single plane) of 256 bytes.
The Flash of the ATSAM3S1 (64-Kbytes internal Flash version) is organized in one bank of 256
pages (Single plane) of 256 bytes.
The Flash contains a 128-byte write buffer, accessible through a 32-bit interface.
The Flash is supplied by VDDCORE.
The Enhanced Embedded Flash Controller (EEFC) manages accesses performed by the mas-
ters of the system. It enables reading the Flash and writing the write buffer. It also contains a
User Interface, mapped on the APB.
The Enhanced Embedded Flash Controller ensures the interface of the Flash block with the 32-
bit internal bus. Its 128-bit wide memory interface increases performance.
The user can choose between high performance or lower current consumption by selecting
either 128-bit or 64-bit access. It also manages the programming, erasing, locking and unlocking
sequences of the Flash using a full set of commands.
One of the commands returns the embedded Flash descriptor definition that informs the system
about the Flash organization, thus making the software generic.
6500C–ATARM–8-Feb-11
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