SAM3N4B Atmel Corporation, SAM3N4B Datasheet - Page 431

• Manufacturer Part Number: SAM3N4B
• Manufacturer: Atmel Corporation

Specifications of SAM3N4B

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 48 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 79
• Ext Interrupts: 79
• 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): 24
• 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

27.5
Table 27-1.
27.6
27.6.1
27.6.2
11011A–ATARM–04-Oct-10
11011A–ATARM–04-Oct-10
Pin Name
MISO
MOSI
SPCK
NPCS1-NPCS3
NPCS0/NSS
Signal Description
Product Dependencies
I/O Lines
Power Management
Signal Description
The pins used for interfacing the compliant external devices may be multiplexed with PIO lines.
The programmer must first program the PIO controllers to assign the SPI pins to their peripheral
functions.
Table 27-2.
The SPI may be clocked through the Power Management Controller (PMC), thus the program-
mer must first configure the PMC to enable the SPI clock.
Pin Description
Master In Slave Out
Master Out Slave In
Serial Clock
Peripheral Chip Selects
Peripheral Chip Select/Slave Select
Instance
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
I/O Lines
NPCS0
NPCS1
NPCS1
NPCS1
NPCS1
NPCS2
NPCS2
NPCS2
NPCS2
NPCS3
NPCS3
NPCS3
Signal
SPCK
MISO
MOSI
Master
Input
Output
Output
Output
Output
I/O Line
PB14
PA12
PA13
PA11
PA31
PA10
PA30
PA22
PA14
PC4
PB2
PC7
PA9
PA3
PA5
Type
Slave
Output
Input
Input
Unused
Input
SAM3N
SAM3N
Peripheral
A
A
A
B
A
A
B
B
B
B
B
B
B
B
A
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