SAM9G25 Atmel Corporation, SAM9G25 Datasheet - Page 353

• Manufacturer Part Number: SAM9G25
• Manufacturer: Atmel Corporation

Specifications of SAM9G25

• Flash (kbytes): 0 Kbytes
• Pin Count: 247
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 105
• Ext Interrupts: 105
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 3
• Uart: 7
• Lin: 4
• Ssc: 1
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: DDR2/LPDDR, SDRAM/LPSDR
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 0.9 to 1.1
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

27.5.3
11032A–ATARM–27-Jul-11
Find the Error Position
The output of the get_sigma() procedure is a polynomial stored in the smu[NB_ERROR+1][]
table. The error position is the roots of that polynomial. The degree of this polynomial is very
important information, as it gives the number of errors. The PMERRLOC module provides a
hardware accelerator for this step.
^ dmu[i+1];
}
}
return 0;
}
dmu[i+1] = gf_antilog[(gf_log[smu[i+1][k]] + gf_log[si[2*(i-1)+3-k]])%nn]
SAM9G25
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