SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 304

• Manufacturer Part Number: SAM3S4B
• Manufacturer: Atmel Corporation

Specifications of SAM3S4B

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 64 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 23
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 79
• Ext Interrupts: 79
• 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): 48
• 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

18.4.2
Name:
Address:
Access:
Offset:
• FCMD: Flash Command
This field defines the flash commands. Refer to
• FARG: Flash Command Argument
• FKEY: Flash Writing Protection Key
This field should be written with the value 0x5A to enable the command defined by the bits of the register. If the field is writ-
ten with a different value, the write is not performed and no action is started.
304
Erase command
Programming command
Lock command
GPNVM command
Get commands
Unique Identifier commands
31
23
15
7
SAM3S
EEFC Flash Command Register
30
22
14
EEFC_FCR
0x400E0A04
Write-only
0x04
6
For erase all command, this field is meaningless.
FARG defines the page number to be programmed.
FARG defines the page number to be locked.
FARG defines the GPNVM number.
Field is meaningless.
Field is meaningless.
29
21
13
5
“Flash Commands” on page
28
20
12
4
FCMD
FARG
FARG
FKEY
27
19
11
3
295.
26
18
10
2
25
17
9
1
6500C–ATARM–8-Feb-11
24
16
8
0