PIC16LF1507 datasheet(84/278 Pages) MICROCHIP

No. de pieza	PIC16LF1507

Descripción Electrónicos	20-Pin Flash, 8-Bit Microcontrollers

PDF	278 Pages

Scroll/Zoom	100%

Fabricante Electrónico	MICROCHIP [Microchip Technology]

Página de inicio	http://www.microchip.com

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84 / 278 page

PIC16(L)F1507

DS40001586D-page 84

 2011-2015 Microchip Technology Inc.

EXAMPLE 10-2:

ERASING ONE ROW OF PROGRAM MEMORY

; This row erase routine assumes the following:

; 1. A valid address within the erase row is loaded in ADDRH:ADDRL

; 2. ADDRH and ADDRL are located in shared data memory 0x70 - 0x7F (common RAM)

BCF

INTCON,GIE

; Disable ints so required sequences will execute properly

BANKSEL

PMADRL

MOVF

ADDRL,W

; Load lower 8 bits of erase address boundary

MOVWF

PMADRL

MOVF

ADDRH,W

; Load upper 6 bits of erase address boundary

MOVWF

PMADRH

BCF

PMCON1,CFGS

; Not configuration space

BSF

PMCON1,FREE

; Specify an erase operation

BSF

PMCON1,WREN

; Enable writes

MOVLW

55h

; Start of required sequence to initiate erase

MOVWF

PMCON2

; Write 55h

MOVLW

0AAh

;

MOVWF

PMCON2

; Write AAh

BSF

PMCON1,WR

; Set WR bit to begin erase

NOP

; NOP instructions are forced as processor starts

NOP

; row erase of program memory.

;

; The processor stalls until the erase process is complete

; after erase processor continues with 3rd instruction

BCF

PMCON1,WREN

; Disable writes

BSF

INTCON,GIE

; Enable interrupts

PIC16LF1507 Datasheet(PDF) 84 Page - Microchip Technology

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