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AT89C51CC03U-RDTIM 데이터시트(PDF) 51 Page - ATMEL Corporation

부품명 AT89C51CC03U-RDTIM
상세설명  Enhanced 8-bit MCU with CAN Controller and Flash Memory
PDF  183 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51CC03U-RDTIM 데이터시트(HTML) 51 Page - ATMEL Corporation

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51
AT89C51CC03
4182B–CAN–09/03
Figure 25. Column Latches Loading Procedure
Note:
The last page address used when loading the column latch is the one used to select the
page programming address.
Programming the Flash Spaces
User
The following procedure is used to program the User space and is summarized in
Figure 26:
•
Load up to one page of data in the column latches from address 0000h to FFFFh.
•
Save and Disable the interrupts.
•
Launch the programming by writing the data sequence 50h followed by A0h in
FCON register (only from FM1).
The end of the programming indicated by the FBUSY flag cleared.
•
Restore the interrupts.
Extra Row
The following procedure is used to program the Extra Row space and is summarized in
Figure 26:
•
Load data in the column latches from address FF80h to FFFFh.
•
Save and Disable the interrupts.
•
Launch the programming by writing the data sequence 52h followed by A2h in
FCON register (only from FM1).
The end of the programming indicated by the FBUSY flag cleared.
•
Restore the interrupts.
Column Latches
Loading
Data Load
DPTR = Address
ACC = Data
Exec: MOVX @DPTR, A
Last Byte
to load?
Column Latches Mapping
FCON = 08h (FPS=1)
Data memory Mapping
FCON = 00h (FPS = 0)
Save and Disable IT
EA = 0
Restore IT



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