SAM3S2A Atmel Corporation, SAM3S2A Datasheet - Page 112
SAM3S2A
Manufacturer Part Number
SAM3S2A
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S2A
Flash (kbytes)
128 Kbytes
Pin Count
48
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
17
Hardware Qtouch Acquisition
No
Max I/o Pins
47
Ext Interrupts
47
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
2
Uart
3
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
1000
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
YES
Dram Memory
No
Nand Interface
Yes
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
Yes / No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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10.13.4
10.13.4.1
10.13.4.2
10.13.4.3
10.13.4.4
10.13.4.5
112
CLZ
CLZNE
SAM3S
CLZ
Syntax
Operation
Restrictions
Condition flags
Examples
R4,R9
R2,R3
Count Leading Zeros.
where:
cond
Rd
Rm
The CLZ instruction counts the number of leading zeros in the value in Rm and returns the result
in Rd. The result value is 32 if no bits are set in the source register, and zero if bit[31] is set.
Do not use SP and do not use PC.
This instruction does not change the flags.
CLZ{cond} Rd, Rm
is an optional condition code, see
is the destination register.
is the operand register.
“Conditional execution” on page
6500C–ATARM–8-Feb-11
84.
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