SAM3N1B Atmel Corporation, SAM3N1B Datasheet - Page 79
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SAM3N1B
Manufacturer Part Number
SAM3N1B
Description
Manufacturer
Atmel Corporation
Specifications of SAM3N1B
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
48 MHz
Cpu
Cortex-M3
# Of Touch Channels
17
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
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)
8
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
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10.11 About the instruction descriptions
10.11.1
10.11.2
11011A–ATARM–04-Oct-10
Operands
Restrictions when using PC or SP
The CMSIS also provides a number of functions for accessing the special registers using MRS
and MSR instructions:
Table 10-15. CMSIS intrinsic functions to access the special registers
The following sections give more information about using the instructions:
An instruction operand can be an ARM register, a constant, or another instruction-specific
parameter. Instructions act on the operands and often store the result in a destination register.
When there is a destination register in the instruction, it is usually specified before the operands.
Operands in some instructions are flexible in that they can either be a register or a constant. See
“Flexible second operand”
Many instructions have restrictions on whether you can use the Program Counter (PC) or Stack
Pointer (SP) for the operands or destination register. See instruction descriptions for more
information.
Special register
PRIMASK
FAULTMASK
BASEPRI
CONTROL
MSP
PSP
•
•
•
•
•
•
•
•
“Operands” on page 79
“Restrictions when using PC or SP” on page 79
“Flexible second operand” on page 80
“Shift Operations” on page 81
“Address alignment” on page 83
“PC-relative expressions” on page 84
“Conditional execution” on page 84
“Instruction width selection” on page
Access
Read
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
Write
.
CMSIS function
uint32_t __get_PRIMASK (void)
void __set_PRIMASK (uint32_t value)
uint32_t __get_FAULTMASK (void)
void __set_FAULTMASK (uint32_t value)
uint32_t __get_BASEPRI (void)
void __set_BASEPRI (uint32_t value)
uint32_t __get_CONTROL (void)
void __set_CONTROL (uint32_t value)
uint32_t __get_MSP (void)
void __set_MSP (uint32_t TopOfMainStack)
uint32_t __get_PSP (void)
void __set_PSP (uint32_t TopOfProcStack)
86.
SAM3N
79
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