PIC16F819 Microchip Technology Inc., PIC16F819 Datasheet - Page 31
PIC16F819
Manufacturer Part Number
PIC16F819
Description
18/20-pin Enhanced Flash Microcontrollers With Nanowatt Technology
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F819.pdf
(176 pages)
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EXAMPLE 3-4:
2004 Microchip Technology Inc.
ERASE_ROW
;
BANKSEL EEADRH
MOVF
MOVWF
MOVF
MOVWF
BANKSEL EECON1
BSF
BSF
BSF
BCF
MOVLW
MOVWF
MOVLW
MOVWF
BSF
NOP
NOP
BCF
BCF
BSF
ERASING A FLASH PROGRAM MEMORY ROW
ADDRH, W
EEADRH
ADDRL, W
EEADR
EECON1, EEPGD
EECON1, WREN
EECON1, FREE
INTCON, GIE
55h
EECON2
AAh
EECON2
EECON1, WR
EECON1, FREE
EECON1, WREN
INTCON, GIE
; Select Bank of EEADRH
;
; MS Byte of Program Address to Erase
;
; LS Byte of Program Address to Erase
; Select Bank of EECON1
; Point to PROGRAM memory
; Enable Write to memory
; Enable Row Erase operation
; Disable interrupts (if using)
;
; Write 55h
;
; Write AAh
; Start Erase (CPU stall)
; Any instructions here are ignored as processor
; halts to begin Erase sequence
; processor will stop here and wait for Erase complete
; after Erase processor continues with 3rd instruction
; Disable Row Erase operation
; Disable writes
; Enable interrupts (if using)
PIC16F818/819
DS39598E-page 29