AT89C5131A-RDTIM Atmel, AT89C5131A-RDTIM Datasheet - Page 32
AT89C5131A-RDTIM
Manufacturer Part Number
AT89C5131A-RDTIM
Description
C5131A 32K FLASH USB VQFP64 IND, 5V
Manufacturer
Atmel
Datasheet
1.AT89C5131A-RDTIM.pdf
(176 pages)
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Extra Row
32
AT89C5131
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
4136C–USB–04/05
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