AT32UC3A464S Atmel Corporation, AT32UC3A464S Datasheet - Page 245

• Manufacturer Part Number: AT32UC3A464S
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A464S

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: AES
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

17. Error Corrected Code Controller (ECCHRS)
17.1
17.2
32072G–11/2011
Features
Overview
Rev. 1.0.0.0
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•
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•
•
NAND Flash and SmartMedia
more invalid bits. Over the NAND Flash and SmartMedia
occur which can be detected and corrected by an Error Corrected Code (ECC).
The ECC Controller is a mechanism that encodes data in a manner that makes possible the
identification and correction of certain errors in data. The ECC controller is capable of single-bit
error correction and two-bit random detection when using the Hamming code (ECC-H) and up to
four symbols (a symbol is a 8-bit data) correction whatever the number of errors in symbol (1 to
8 bits of error) when using the Reed-Solomon code (ECC-RS).
When NAND Flash/SmartMedia
code (ECC-H) or more than four bits in error when using the Reed-Solomon code (ECC-RS), the
data cannot be corrected.
Hardware Error Corrected Code Generation with two methods :
Supports NAND Flash and SmartMedia
bit data path for ECC-RS
Supports NAND Flash and SmartMedia
(specified by software)
ECC_H supports :
ECC_RS supports :
– Hamming code detection and correction by software (ECC-H)
– Reed-Solomon code detection by hardware, correction by hardware or software (ECC-RS)
– One bit correction per page of 512,1024,2048, or 4096 bytes
– One bit correction per sector of 512 bytes of data for a page size of 512, 1024, 2048, or 4096
– One bit correction per sector of 256 bytes of data for a page size of 512, 1024, 2048, or 4096
– 4 errors correction per sector of 512 bytes of data for a page size of 512, 1024, 2048, and
bytes
bytes
4096 bytes with 8-bit data path
™
™
devices contain by default invalid blocks which have one or
have more than two erroneous bits when using the Hamming
™
™
devices with 8- or 16-bit data path for ECC-H, and with 8-
with page sizes of 528, 1056, 2112, and 4224 bytes
™
lifetime, additional invalid blocks may
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