$MOD52
CSEG

ORG 0000h
	LJMP BEGIN
ORG 40h

BEGIN:
	MOV SCON,#01110000B ; Mode 1/Stop b/Rec en/x/x/Flags
	MOV TH1,#0FDh ; Reload value for 9600 Bd
	MOV TCON,#01010101B ; Fl1/Tim1 on/Fl0/Tim0 on/Ext1-edge/Ext0-edge
	MOV TMOD,#00100001B ; Gate1/Timer/Mode 2/Gate0/Timer/Mode 1

START:
	MOV SBUF,#55H
SERWT:
	JNB SCON.1, SERWT
	CLR SCON.1
	AJMP START