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MCP7940N-E/MS bảng dữ liệu(PDF) 12 Page - Microchip Technology |
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MCP7940N-E/MS bảng dữ liệu(HTML) 12 Page - Microchip Technology |
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12 / 58 page  MCP7940N DS20005010J-page 12 2011-2022 Microchip Technology Inc. and its subsidiares TABLE 5-1: DETAILED RTCC REGISTER MAP Addr. Register Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Section 5.3 “Timekeeping” 00h RTCSEC ST SECTEN2 SECTEN1 SECTEN0 SECONE3 SECONE2 SECONE1 SECONE0 01h RTCMIN — MINTEN2 MINTEN1 MINTEN0 MINONE3 MINONE2 MINONE1 MINONE0 02h RTCHOUR —12/24 AM/PM HRTEN1 HRTEN0 HRONE3 HRONE2 HRONE1 HRONE0 03h RTCWKDAY — — OSCRUN PWRFAIL VBATEN WKDAY2 WKDAY1 WKDAY0 04h RTCDATE — — DATETEN1 DATETEN0 DATEONE3 DATEONE2 DATEONE1 DATEONE0 05h RTCMTH — — LPYR MTHTEN0 MTHONE3 MTHONE2 MTHONE1 MTHONE0 06h RTCYEAR YRTEN3 YRTEN2 YRTEN1 YRTEN0 YRONE3 YRONE2 YRONE1 YRONE0 07h CONTROL OUT SQWEN ALM1EN ALM0EN EXTOSC CRSTRIM SQWFS1 SQWFS0 08h OSCTRIM SIGN TRIMVAL6 TRIMVAL5 TRIMVAL4 TRIMVAL3 TRIMVAL2 TRIMVAL1 TRIMVAL0 09h Reserved Reserved – Do not use Section 5.4 “Alarms” 0Ah ALM0SEC — SECTEN2 SECTEN1 SECTEN0 SECONE3 SECONE2 SECONE1 SECONE0 0Bh ALM0MIN — MINTEN2 MINTEN1 MINTEN0 MINONE3 MINONE2 MINONE1 MINONE0 0Ch ALM0HOUR —12/24(2) AM/PM HRTEN1 HRTEN0 HRONE3 HRONE2 HRONE1 HRONE0 0Dh ALM0WKDAY ALMPOL ALM0MSK2 ALM0MSK1 ALM0MSK0 ALM0IF WKDAY2 WKDAY1 WKDAY0 0Eh ALM0DATE — — DATETEN1 DATETEN0 DATEONE3 DATEONE2 DATEONE1 DATEONE0 0Fh ALM0MTH — — — MTHTEN0 MTHONE3 MTHONE2 MTHONE1 MTHONE0 10h Reserved Reserved – Do not use Section 5.4 “Alarms” 11h ALM1SEC — SECTEN2 SECTEN1 SECTEN0 SECONE3 SECONE2 SECONE1 SECONE0 12h ALM1MIN — MINTEN2 MINTEN1 MINTEN0 MINONE3 MINONE2 MINONE1 MINONE0 13h ALM1HOUR —12/24(2) AM/PM HRTEN1 HRTEN0 HRONE3 HRONE2 HRONE1 HRONE0 14h ALM1WKDAY ALMPOL(3) ALM1MSK2 ALM1MSK1 ALM1MSK0 ALM1IF WKDAY2 WKDAY1 WKDAY0 15h ALM1DATE — — DATETEN1 DATETEN0 DATEONE3 DATEONE2 DATEONE1 DATEONE0 16h ALM1MTH — — — MTHTEN0 MTHONE3 MTHONE2 MTHONE1 MTHONE0 17h Reserved Reserved – Do not use Section 5.7.1 “Power-Fail Time-Stamp” 18h PWRDNMIN — MINTEN2 MINTEN1 MINTEN0 MINONE3 MINONE2 MINONE1 MINONE0 19h PWRDNHOUR —12/24 AM/PM HRTEN1 HRTEN0 HRONE3 HRONE2 HRONE1 HRONE0 1Ah PWRDNDATE — — DATETEN1 DATETEN0 DATEONE3 DATEONE2 DATEONE1 DATEONE0 1Bh PWRDNMTH WKDAY2 WKDAY1 WKDAY0 MTHTEN0 MTHONE3 MTHONE2 MTHONE1 MTHONE0 Section 5.7.1 “Power-Fail Time-Stamp” 1Ch PWRUPMIN — MINTEN2 MINTEN1 MINTEN0 MINONE3 MINONE2 MINONE1 MINONE0 1Dh PWRUPHOUR —12/24 AM/PM HRTEN1 HRTEN0 HRONE3 HRONE2 HRONE1 HRONE0 1Eh PWRUPDATE — — DATETEN1 DATETEN0 DATEONE3 DATEONE2 DATEONE1 DATEONE0 1Fh PWRUPMTH WKDAY2 WKDAY1 WKDAY0 MTHTEN0 MTHONE3 MTHONE2 MTHONE1 MTHONE0 Note 1: Grey areas are unimplemented. 2: The 12/24 bits in the ALMxHOUR registers are read-only and reflect the value of the 12/24 bit in the RTCHOUR register. 3: The ALMPOL bit in the ALM1WKDAY register is read-only and reflects the value of the ALMPOL bit in the ALM0WKDAY register. |
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