SAM3S2C Atmel Corporation, SAM3S2C Datasheet - Page 314
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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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19.2.5.2
314
SAM3S
Flash Write Command
Table 19-7.
This command is used to write the Flash contents.
The Flash memory plane is organized into several pages. Data to be written are stored in a load
buffer that corresponds to a Flash memory page. The load buffer is automatically flushed to the
Flash:
The Write Page command (WP) is optimized for consecutive writes. Write handshaking can be
chained; an internal address buffer is automatically increased.
Table 19-8.
Table 19-9.
Step
n+1
n+2
n+3
n+4
n+5
...
Step
1
2
3
4
5
...
n
n+1
n+2
n+3
...
Step
1
2
3
4
• before access to any page other than the current one
• when a new command is validated (MODE = CMDE)
Handshake Sequence
Write handshaking
Write handshaking
Write handshaking
Read handshaking
Read handshaking
...
Handshake Sequence
Write handshaking
Write handshaking
Write handshaking
Write handshaking
Write handshaking
...
Write handshaking
Write handshaking
Write handshaking
Write handshaking
...
Handshake Sequence
Write handshaking
Write handshaking
Write handshaking
Write handshaking
Read Command (Continued)
Write Command
Write Command
MODE[3:0]
CMDE
ADDR0
ADDR1
DATA
DATA
...
ADDR0
ADDR1
DATA
DATA
...
MODE[3:0]
ADDR0
MODE[3:0]
ADDR1
ADDR2
ADDR3
DATA
DATA
...
CMDE
ADDR1
ADDR2
DATA[15:0]
WP or WPL or EWP or EWPL
Memory Address LSB
Memory Address
*Memory Address++
*Memory Address++
...
Memory Address LSB
Memory Address
*Memory Address++
*Memory Address++
...
DATA[7:0]
WP or WPL or EWP or EWPL
Memory Address LSB
Memory Address
Memory Address
DATA[7:0]
Memory Address
Memory Address
Memory Address
*Memory Address++
*Memory Address++
...
6500C–ATARM–8-Feb-11
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