LD A,000H
    OUT (0BFH),A
    LD A,000H
    OUT (0BFH),A
    PUSH IX       ; WAIT 15 CLOCK
    POP IX        ; WAIT 14 CLOCK    TOTAL 29 CLOCK
    IN A,(0BEH)
    PUSH IX       ; WAIT
    POP IX        ; WAIT
    IN A,(0BEH)
    PUSH IX       ; WAIT
    POP IX        ; WAIT