SAM3N2A Atmel Corporation, SAM3N2A Datasheet - Page 131
SAM3N2A
Manufacturer Part Number
SAM3N2A
Description
Manufacturer
Atmel Corporation
Specifications of SAM3N2A
Flash (kbytes)
128 Kbytes
Pin Count
48
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
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)
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
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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10.17.1.4
10.17.1.5
11011A–ATARM–04-Oct-10
B
BLE
B.W
BEQ
BEQ.W
BL
BX
BXNE
BLX
Condition flags
Examples
loopA
ng
target ; Branch to target within 16MB range
target ; Conditionally branch to target
target ; Conditionally branch to target within 1MB
funC
LR
R0
R0
; Branch to loopA
; Conditionally branch to label ng
; Branch with link (Call) to function funC, return address
; stored in LR
; Return from function call
; Conditionally branch to address stored in R0
; Branch with link and exchange (Call) to a address stored
; in R0
Bcond is the only conditional instruction that is not required to be inside an IT block. However, it
has a longer branch range when it is inside an IT block.
These instructions do not change the flags.
• do not use PC in the BLX instruction
• for BX and BLX, bit[0] of Rm must be 1 for correct execution but a branch occurs to the target
• when any of these instructions is inside an IT block, it must be the last instruction of the IT
address created by changing bit[0] to 0
block.
SAM3N
131
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