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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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MEC1322 데이터시트(PDF) 231 Page - Microchip Technology |
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MEC1322 데이터시트(HTML) 231 Page - Microchip Technology |
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231 / 456 page  2014 - 2015 Microchip Technology Inc. DS00001719D-page 231 MEC1322 19.0 RTC WITH DATE AND DST ADJUSTMENT 19.1 Introduction This block provides the capabilities of an industry-standard 146818B Real-Time Clock module, without CMOS RAM. Enhancements to this architecture include: • Industry standard Day of Month Alarm field, allowing for monthly alarms • Configurable, automatic Daylight Savings adjustment • Week Alarm for periodic interrupts and wakes based on Day of Week • System Wake capability on interrupts. 19.2 References 1. Motorola 146818B Data Sheet, available on-line 2. Intel Lynx Point PCH EDS specification 19.3 Terminology Time and Date Registers: This is the set of registers that are automatically counted by hardware every 1 second while the block is enabled to run and to update. These registers are: Seconds, Minutes, Hours, Day of Week, Day of Month, Month, and Year. 19.4 Interface This block’s connections are entirely internal to the chip. FIGURE 19-1: I/O DIAGRAM OF BLOCK RTC With Date and DST Adjust- ment Signal Description Clocks Interrupts Host Interface Resets |
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