SAM3N4B Atmel Corporation, SAM3N4B Datasheet - Page 295

• 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

Table 19-4.
19.2.4.2
11011A–ATARM–04-Oct-10
Step
1
2
3
4
5
6
Programmer Action
Sets MODE and DATA signals
Clears NCMD signal
Waits for RDY low
Releases MODE and DATA signals
Sets NCMD signal
Waits for RDY high
Read Handshaking
Write Handshake
Figure 19-4. SAM3NxA (48 pins) Parallel Programming Timing, Write Sequence
For details on the read handshaking sequence, refer
Figure 19-5. SAM3NxB/C (64/100 pins) Parallel Programming Timing, Read Sequence
MODE[3:0]
DATA[7:0]
MODE[3:0]
DATA[15:0]
NVALID
NVALID
NCMD
NCMD
NOE
RDY
NOE
RDY
1
1
Device Action
Waits for NCMD low
Latches MODE and DATA
Clears RDY signal
Executes command and polls NCMD high
Executes command and polls NCMD high
Sets RDY
2
2
Adress IN
ADDR
3
3
4
5
Z
toFigure 19-5 Figure 19-6
6
4
7
Data OUT
8
5
9
Data I/O
Input
Input
Input
Input
Input
Input
10
11
X
12
13
and
IN
SAM3N
Table
19-5.
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