SAM3S2A Atmel Corporation, SAM3S2A Datasheet - Page 316
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SAM3S2A
Manufacturer Part Number
SAM3S2A
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S2A
Flash (kbytes)
128 Kbytes
Pin Count
48
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
17
Hardware Qtouch Acquisition
No
Max I/o Pins
47
Ext Interrupts
47
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
2
Uart
3
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
1000
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
32
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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19.2.5.5
316
SAM3S
Flash General-purpose NVM Commands
In the same way, the Clear Lock command (CLB) is used to clear lock bits.
Table 19-11. Set and Clear Lock Bit Command
Lock bits can be read using Get Lock Bit command (GLB). The n
n of the bit mask is set..
Table 19-12. Get Lock Bit Command
General-purpose NVM bits (GP NVM bits) can be set using the Set GPNVM command (SGPB).
This command also activates GP NVM bits. A bit mask is provided as argument to the com-
mand. When bit 0 of the bit mask is set, then the first GP NVM bit is activated.
In the same way, the Clear GPNVM command (CGPB) is used to clear general-purpose NVM
bits. The general-purpose NVM bit is deactivated when the corresponding bit in the pattern value
is set to 1.
Table 19-13. Set/Clear GP NVM Command
General-purpose NVM bits can be read using the Get GPNVM Bit command (GGPB). The n
GP NVM bit is active when bit n of the bit mask is set..
Table 19-14. Get GP NVM Bit Command
Step
1
2
Step
1
2
Step
1
2
Step
1
2
Handshake Sequence
Write handshaking
Write handshaking
Handshake Sequence
Write handshaking
Read handshaking
Handshake Sequence
Write handshaking
Write handshaking
Handshake Sequence
Write handshaking
Read handshaking
MODE[3:0]
CMDE
DATA
MODE[3:0]
CMDE
DATA
MODE[3:0]
CMDE
DATA
MODE[3:0]
CMDE
DATA
DATA[15:0] or DATA[7:0]
SLB or CLB
Bit Mask
DATA[15:0] or DATA[7:0]
GLB
Lock Bit Mask Status
0 = Lock bit is cleared
1 = Lock bit is set
DATA[15:0] or DATA[7:0]
SGPB or CGPB
GP NVM bit pattern value
DATA[15:0] or DATA[7:0]
GGPB
GP NVM Bit Mask Status
0 = GP NVM bit is cleared
1 = GP NVM bit is set
th
lock bit is active when the bit
6500C–ATARM–8-Feb-11
th
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