SAM3N4A Atmel Corporation, SAM3N4A Datasheet - Page 50

• Manufacturer Part Number: SAM3N4A
• Manufacturer: Atmel Corporation

Specifications of SAM3N4A

• Flash (kbytes): 256 Kbytes
• Pin Count: 48
• 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: 2
• Twi (i2c): 2
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• 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

10.4.3.12
• PRIMASK
0 = no effect
1 = prevents the activation of all exceptions with configurable priority.
10.4.3.13
• FAULTMASK
0 = no effect
1 = prevents the activation of all exceptions.
The processor clears the FAULTMASK bit to 0 on exit from any exception handler except the NMI handler.
50
31
23
15
31
23
15
7
7
SAM3N
Priority Mask Register
Fault Mask Register
30
22
14
30
22
14
6
6
The PRIMASK register prevents activation of all exceptions with configurable priority. See the
register summary in
The FAULTMASK register prevents activation of all exceptions. See the register summary in
Table 10-2 on page 44
29
21
13
29
21
13
5
5
Table 10-2 on page 44
Reserved
Reserved
for its attributes. The bit assignments are:
28
20
12
28
20
12
4
4
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
27
19
11
27
19
11
3
3
for its attributes. The bit assignments are:
26
18
10
26
18
10
2
2
25
17
25
17
9
1
9
1
11011A–ATARM–04-Oct-10
FAULTMASK
PRIMASK
24
16
24
16
8
0
8
0