ORG	0000H
	GOTO	MAIN			
	ORG	0008H			
HI_ISR BTFSC PIR1,TXIF	
	BRA	TX_ISR		
	BTFSC PIR1,RCIF		
	BRA 	RC_ISR		
	RETFIE			
TX_ISR MOVFF PORTD,TXREG 	
	GOTO HI_ISR
RC_ISR 
	MOVFF RCREG,PORTB  	
	GOTO HI_ISR	
	ORG	00100H	
MAIN	CLRF TRISB		
	SETF TRISD		
	MOVLW 0x20   	
   	MOVWF TXSTA    	
   	MOVLW D'15'   	
   	MOVWF SPBRG   	
   	BCF TRISC,TX	
   	BSF TRISC,RX	
	MOVLW 0x90		
    	MOVWF	RCSTA   	
	BSF PIE1,TXIE	
	BSF PIE1,RCIE	
	BSF INTCON,PEIE	
	BSF INTCON,GIE	
OVER BRA OVER		
	END