Microchip Technology AC244045 Data Sheet

 2010-2012 Microchip Technology Inc.

DS41440C-page 109

* This code block will read 1 word of program
* memory at the memory address:

PROG_ADDR_HI : PROG_ADDR_LO

*

data will be returned in the variables;

*

PROG_DATA_HI, PROG_DATA_LO

BANKSEL

EEADRL

; Select Bank for EEPROM registers

MOVLW

PROG_ADDR_LO

; 

MOVWF

EEADRL

; Store LSB of address

MOVLW

PROG_ADDR_HI

; 

MOVWL

EEADRH

; Store MSB of address

    

BCF

EECON1,CFGS

; Do not select Configuration Space

BSF

EECON1,EEPGD

; Select Program Memory

BCF

INTCON,GIE

; Disable interrupts

BSF

EECON1,RD

; Initiate read

NOP

)

NOP

)

BSF

INTCON,GIE

; Restore interrupts

MOVF

EEDATL,W

; Get LSB of word

MOVWF

PROG_DATA_LO

; Store in user location

MOVF

EEDATH,W

; Get MSB of word

MOVWF

PROG_DATA_HI

; Store in user location