SAM3N2C Atmel Corporation, SAM3N2C Datasheet - Page 185
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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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10.21.11.3
• DIVBYZERO
Divide by zero usage fault:
0 = no divide by zero fault, or divide by zero trapping not enabled
1 = the processor has executed an SDIV or UDIV instruction with a divisor of 0.
When the processor sets this bit to 1, the PC value stacked for the exception return points to the instruction that performed
the divide by zero.
Enable trapping of divide by zero by setting the DIV_0_TRP bit in the CCR to 1, see
on page
• UNALIGNED
Unaligned access usage fault:
0 = no unaligned access fault, or unaligned access trapping not enabled
1 = the processor has made an unaligned memory access.
Enable trapping of unaligned accesses by setting the UNALIGN_TRP bit in the CCR to 1, see
Register” on page
Unaligned LDM, STM, LDRD, and STRD instructions always fault irrespective of the setting of UNALIGN_TRP.
• NOCP
No coprocessor usage fault. The processor does not support coprocessor instructions:
0 = no usage fault caused by attempting to access a coprocessor
1 = the processor has attempted to access a coprocessor.
• INVPC
Invalid PC load usage fault, caused by an invalid PC load by EXC_RETURN:
0 = no invalid PC load usage fault
1 = the processor has attempted an illegal load of EXC_RETURN to the PC, as a result of an invalid context, or an invalid
EXC_RETURN value.
When this bit is set to 1, the PC value stacked for the exception return points to the instruction that tried to perform the ille-
gal load of the PC.
• INVSTATE
Invalid state usage fault:
0 = no invalid state usage fault
1 = the processor has attempted to execute an instruction that makes illegal use of the EPSR.
11011A–ATARM–04-Oct-10
15
7
174.
Usage Fault Status Register
174.
14
6
Reserved
The UFSR indicates the cause of a usage fault. The bit assignments are:
13
5
Reserved
12
4
NOCP
11
3
INVPC
10
2
“Configuration and Control Register”
DIVBYZERO
INVSTATE
“Configuration and Control
9
1
SAM3N
UNALIGNED
UNDEFINSTR
8
0
185
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