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L99LD21 数据表(PDF) 45 Page - STMicroelectronics |
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L99LD21 数据表(HTML) 45 Page - STMicroelectronics |
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45 / 73 page  DS11130 Rev 5 45/73 L99LD21 SPI functional description 72 5.4.3 Customer test and trimming registers description CT: Customer Trimming Register Address: 0x3Eh Type: R/W Write operation allowed only when CTM_TRIM_COD = 100 and EOT = 0 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9876 543210 Reserved Table 26. CT: Ctm Trimming Register Bit Default Name Comment 23÷21 000 CTM_TRIM_COD Operation Code for Trimming Operation: 011: Execute blank check read 100: Execute selected bit burning 010: Execute margin mode read 011: Execute blank check read 111: Execute end of trimming 001: Execute standard read 20÷19 00 DEF_HLEDCUR 18÷17 00 DEF_DAC1 16÷15 00 DEF_VLEDTOFF1 14 0 DEF_MS 13 0 DEF_BSTDIS 12 0 EOT End of Ctm Trimming 11÷1 00000000000 — Reserved 0 Parity Bit ODD Parity Bit Check |
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