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PIC18F6490 bảng dữ liệu(PDF) 91 Page - Microchip Technology

tên linh kiện PIC18F6490
Giải thích chi tiết về linh kiện  64/80-Pin Flash Microcontrollers with LCD Driver and nanoWatt Technology
PDF  414 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F6490 bảng dữ liệu(HTML) 91 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS39629C-page 89
PIC18F6390/6490/8390/8490
EXAMPLE 6-1:
READING A FLASH PROGRAM MEMORY WORD
TABLE 6-2:
REGISTERS ASSOCIATED WITH READING PROGRAM FLASH MEMORY
MOVLW
CODE_ADDR_UPPER
; Load TBLPTR with the base
MOVWF
TBLPTRU
; address of the word
MOVLW
CODE_ADDR_HIGH
MOVWF
TBLPTRH
MOVLW
CODE_ADDR_LOW
MOVWF
TBLPTRL
READ_WORD
TBLRD*+
; read into TABLAT and increment
MOVF
TABLAT, W
; get data
MOVWF
WORD_EVEN
TBLRD*+
; read into TABLAT and increment
MOVF
TABLAT, W
; get data
MOVWF
WORD_ODD
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reset
Valueson
Page
TBLPTRU
—
—
bit 21
Program Memory Table Pointer Upper Byte
(TBLPTR<20:16>)
59
TBLPTRH
Program Memory Table Pointer High Byte (TBLPTR<15:8>)
59
TBLPTRL
Program Memory Table Pointer Low Byte (TBLPTR<7:0>)
59
TABLAT
Program Memory Table Latch
59
Legend: — = unimplemented, read as ‘0’. Shaded cells are not used during Flash access.



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