AT89C5131-PLTIL ATMEL Corporation, AT89C5131-PLTIL Datasheet - Page 31
AT89C5131-PLTIL
Manufacturer Part Number
AT89C5131-PLTIL
Description
8-bit Flash Microcontroller with Full Speed USB Device
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C5131-PLTIL.pdf
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Extra Row
4136B–USB–09/03
The following procedure is used to program the Extra Row space and is summarized in
Figure 16:
•
•
•
•
Figure 16. Flash and Extra Row Programming Procedure
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.
Column Latches Loading
Launch Programming
End Programming
Programming
Flash Spaces
see Figure 15
FCON = Axh
FCON = 5xh
Erase Mode
FCON = 00h
Cleared?
Disable IT
Enable IT
FBusy
EA = 0
EA = 1
AT89C5131
31
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