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AT89C5131-RDTIL Datasheet(PDF) 31 Page - ATMEL Corporation

Part # AT89C5131-RDTIL
Description  8-bit Flash Microcontroller with Full Speed USB Device
PDF  176 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C5131-RDTIL Datasheet(HTML) 31 Page - ATMEL Corporation

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AT89C5131
4136B–USB–09/03
Extra Row
The following procedure is used to program the Extra Row space and is summarized in
Figure 16:
•
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 16. 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 15
FBusy
Cleared?
Erase Mode
FCON = 00h



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