;-------------------------------------------------------------------------------	    
;-----------------  Asynchronous Serial Receive Initialisation -----------------
;-------------------------------------------------------------------------------	    	    
serialinit
	    bsf	    STATUS, RP1		; Set RP1 to 0
	    bsf	    STATUS, RP0		; Set RP0 to 1
					; Bank 3 Selected
					
	    bsf	    BAUDCTL, BRG16	; Sets 16-bit baud generator
	    
	    bcf	    STATUS, RP1		; Set RP1 to 0
					; Bank 1 Selected			
					
	    bsf	    TRISB, 1		; Both serial input and output must 
	    bsf	    TRISB, 2		; be set as inputs.
	    
	    bsf	    TXSTA, BRGH		; Set high baud rate
	    
	    movlw   d'8'    
	    movwf   SPBRG
	    movlw   d'2'    
	    movwf   SPBRGH		; Set baud rate to 9600
	    
	    bcf	    TXSTA, SYNC		; Set to asynchronous mode
	    
	    bcf	    STATUS, RP0		; Set RP0 to 0
					; Bank 0 Selected
					
	    bsf	    INTCON, PEIE	; Turn on peripheral interrupts					
	    bsf	    RCSTA, SPEN		; Enable Serial Port

	    bsf	    STATUS, RP0		; Set RP0 to 1
					; Bank 1 Selected
	    
	    bsf	    PIE1, RCIE		; Turn on Serial Receive Interrupt
	    
	    bcf	    STATUS, RP0		; Set RP0 to 0
					; Bank 0 Selected
						
	    bsf	    RCSTA, CREN		; Turns on receive
	    
	    movf    RCREG, w
	    movf    RCREG, w
	    movf    RCREG, w		; Clear contents to clear interrupt
	    
	    bsf	    INTCON, GIE		; Enable interrupts
	    
;-------------------------------------------------------------------------------
;----------------------------  Interrupt Program  ------------------------------
;-------------------------------------------------------------------------------
Interrupt	
	    movwf	w_save
	    movf	STATUS, w
	    clrf	STATUS
	    movwf	status_save
	    movf	PCLATH, w
	    movwf	pclath_save
	    
	    movf	RCREG, w
	    movwf	sertemp		;   For example this line could set an 
					;   action in motion such as save to 
	    movf	pclath_save	;   EEPROM or write to LCD.
	    movwf	PCLATH
	    movf	status_save, w	
	    movwf	STATUS
	    swapf	w_save, f
	    swapf	w_save, w
	    retfie