SAM3N2B Atmel Corporation, SAM3N2B Datasheet - Page 433

• Manufacturer Part Number: SAM3N2B
• Manufacturer: Atmel Corporation

Specifications of SAM3N2B

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 48 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 23
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 47
• Ext Interrupts: 47
• Quadrature Decoder Channels: 2
• Usb Speed: No
• Usb Interface: No
• Spi: 3
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 10
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• 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: no / no
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 27-3. SPI Transfer Format (NCPHA = 1, 8 bits per transfer)
Figure 27-4. SPI Transfer Format (NCPHA = 0, 8 bits per transfer)
11011A–ATARM–04-Oct-10
11011A–ATARM–04-Oct-10
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
SAM3N
SAM3N
*
433
433