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AT89C5131A-RDTIM 数据表(PDF) 33 Page - ATMEL Corporation |
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AT89C5131A-RDTIM 数据表(HTML) 33 Page - ATMEL Corporation |
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33 / 186 page  33 AT89C5130A/31A-M 4337G–USB–11/06 Extra Row The following procedure is used to program the Extra Row space and is summarized in Figure 18: • Load data in the column latches from address FF80h to FFFFh. • Disable the interrupts. • Launch the programming by writing the data sequence 52h followed by A2h in FCON register. The end of the programming indicated by the FBUSY flag cleared. • Enable the interrupts. Figure 18. Flash and Extra Row Programming Procedure Flash Spaces Programming Disable IT EA = 0 Launch Programming FCON = 5xh FCON = Axh End Programming Enable IT EA = 1 Column Latches Loading see Figure 17 FBusy Cleared? Erase Mode FCON = 00h |
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