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T89C5115-RATIM bảng dữ liệu(PDF) 36 Page - ATMEL Corporation

tên linh kiện T89C5115-RATIM
Giải thích chi tiết về linh kiện  Low Pin Countl 8-bit Microcontroller with A/D Converter and 16 KBytes Flash Memory
PDF  113 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T89C5115-RATIM bảng dữ liệu(HTML) 36 Page - ATMEL Corporation

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AT89C5115
4128F–8051–05/06
Figure 14. Column Latches Loading Procedure
(1)
Note:
1. 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 15:
•
Load up to one page of data in the column latches from address 0000h to 3FFFh.
•
Save then disable the interrupts.
•
Launch the programming by writing the data sequence 50h followed by A0h in
FCON register.This step must be executed 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 15:
•
Load data in the column latches from address FF80h to FFFFh.
•
Save then disable the interrupts.
•
Launch the programming by writing the data sequence 52h followed by A2h in
FCON register. This step of the procedure must be executed 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 & Disable IT
EA = 0
Restore IT



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