SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 585
SAM3S4B
Manufacturer Part Number
SAM3S4B
Description
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
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Figure 30-3. SPI Transfer Format (NCPHA = 1, 8 bits per transfer)
Figure 30-4. SPI Transfer Format (NCPHA = 0, 8 bits per transfer)
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11
SPCK cycle (for reference)
SPCK cycle (for reference)
(from master)
(from master)
(from slave)
(CPOL = 0)
(CPOL = 1)
(from slave)
(CPOL = 0)
(CPOL = 1)
(to slave)
(to slave)
SPCK
SPCK
MOSI
MISO
SPCK
SPCK
MOSI
MISO
NSS
NSS
* Not defined, but normally MSB of previous character received.
*
* Not defined but normally LSB of previous character transmitted.
MSB
1
1
MSB
MSB
MSB
2
2
6
6
6
6
3
3
5
5
5
5
4
4
4
4
4
4
5
5
3
3
3
3
6
6
6
2
2
2
2
7
7
1
1
1
1
8
8
LSB
LSB
LSB
LSB
SAM3S
SAM3S
*
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