SAM3N2C Atmel Corporation, SAM3N2C Datasheet - Page 171
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SAM3N2C
Manufacturer Part Number
SAM3N2C
Description
Manufacturer
Atmel Corporation
Specifications of SAM3N2C
Flash (kbytes)
128 Kbytes
Pin Count
100
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
16
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
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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10.21.6
• VECTKEYSTAT
Register Key:
Reads as 0xFA05
• VECTKEY
Register key:
On writes, write 0x5FA to VECTKEY, otherwise the write is ignored.
• ENDIANESS
RO
Data endianness bit:
0 = Little-endian
ENDIANESS is set from the BIGEND configuration signal during reset.
• PRIGROUP
R/W
Interrupt priority grouping field. This field determines the split of group priority from subpriority, see
172.
• SYSRESETREQ
WO
System reset request:
0 = no effect
1 = asserts a proc_reset_signal.
This is intended to force a large system reset of all major components except for debug.
This bit reads as 0.
11011A–ATARM–04-Oct-10
ENDIANESS
31
23
15
7
Application Interrupt and Reset Control Register
30
22
14
6
The AIRCR provides priority grouping control for the exception model, endian status for data
accesses, and reset control of the system. See the register summary in
164
To write to this register, you must write 0x05FA to the VECTKEY field, otherwise the processor
ignores the write.
The bit assignments are:
and
Reserved
Table 10-33 on page 191
29
21
13
5
On Read: VECTKEYSTAT, On Write: VECTKEY
On Read: VECTKEYSTAT, On Write: VECTKEY
Reserved
28
20
12
4
for its attributes.
27
19
11
3
SYSRESETREQ
26
18
10
2
PRIGROUP
VECTCLR-
ACTIVE
25
17
9
1
“Binary point” on page
Table 10-30 on page
SAM3N
VECTRESET
24
16
8
0
171
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