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AS5047U-HTST датащи(PDF) 36 Page - ams AG |
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AS5047U-HTST датащи(HTML) 36 Page - ams AG |
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36 / 51 page ![]() Page 36 ams Datasheet Document Feedback [v1-00] 2018-Oct-30 AS5047U − Detailed Description ECC The ECC (Error Code Correction) is a mechanism which protects the customer settings. The ECC protection is active whenever ECC_en=1. ECC_en is the error corrected counterpart of the P2RAM bit en and is found in register ECC_STATUS. Whenever a bit error occurs, this is reported by the status register ERRFL [2:3]. Single bit errors are corrected immediately and do not influence the correct operation of the sensor. If either a single or double errors are detected, the next SPI MISO frame will report this to the software by setting flags error=1 (double bit error) or warning=1 (single bit error). Warning and error are sticky flags, which guarantees that spurious P2RAM errors are certainly reported. The ECC Protection is activated with the following steps: • Writing uses data into the register and set ECC_en to high. • Reading ECC_s from register 0x3FD0 and set the value into ECC_chsum. Do not overwrite the ECC_en • Programming the part. |
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