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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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AT89C5131A-RDTUM Datasheet(PDF) 36 Page - ATMEL Corporation |
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AT89C5131A-RDTUM Datasheet(HTML) 36 Page - ATMEL Corporation |
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36 / 188 page  36 4337K–USB–04/08 AT89C5130A/31A-M Figure 8-7. Hardware Programming Procedure 8.3.7 Reading the Flash Spaces 8.3.7.1 User The following procedure is used to read the User space and is summarized in Figure 8-8: • Map the User space by writing 00h in FCON register. • Read one byte in Accumulator by executing MOVC A, @A+DPTR with A = 0 & DPTR = 0000h to FFFFh. 8.3.7.2 Extra Row The following procedure is used to read the Extra Row space and is summarized in Figure 8-8: • Map the Extra Row space by writing 02h in FCON register. • Read one byte in Accumulator by executing MOVC A, @A+DPTR with A = 0 & DPTR = FF80h to FFFFh. Flash Spaces Programming Disable IT EA = 0 Launch Programming FCON = 54h FCON = A4h End Programming Enable IT EA = 1 FBusy Cleared? Erase Mode FCON = 00h Data Load DPTR = 00h ACC = Data Exec: MOVX @DPTR, A FCON = 0Ch |
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