AT32UC3C2256C Atmel Corporation, AT32UC3C2256C Datasheet - Page 153

• Manufacturer Part Number: AT32UC3C2256C
• Manufacturer: Atmel Corporation

Specifications of AT32UC3C2256C

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 45
• Ext Interrupts: 64
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Can: 2
• Lin: 4
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 12
• Adc Speed (ksps): 2000
• Analog Comparators: 2
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 68
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6 or 4.5 to 5.5
• Operating Voltage (vcc): 3.0 to 3.6 or 4.5 to 5.5
• Fpu: Yes
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 13
• Input Capture Channels: 6
• Pwm Channels: 14
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

32000D–04/2011
CLZ – Count Leading Zeros
Architecture revision:
Architecture revision1 and higher.
Description
Counts the number of binary zero bits before the first binary one bit in a register value. The value
returned from the operation can be used for doing normalize operations. If the operand is zero,
the value 32 is returned.
Operation:
I.
Syntax:
I.
Operands:
I.
Status Flags
Opcode:
31
1
15
0
temp ← 32;
for (i = 31; i >= 0; i--)
Rd ← temp;
clz
{d, s} ∈ {0, 1, …, 15}
Q:
V:
N:
Z:
C:
1
0
29
1
0
if (Rs[i] == 1) then
Rd, Rs
Not affected
Not affected
Not affected
Z ← (RES[31:0] == 0)
C ← (RES[31:0] == 32)
12
28
1
temp ← 31 - i;
break;
11
0
Rs
0
25
1
8
24
0
0
7
0
0
0
0
0
0
20
0
0
19
0
0
Rd
AVR32
0
0
16
0
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