STC_GSCR1
STC_WRITE(sc, STC_GSCR1, 0);
channel = CD180_GSCR_CHANNEL(STC_READ(sc, STC_GSCR1));
channel = CD180_GSCR_CHANNEL(STC_READ(sc, STC_GSCR1));
channel = CD180_GSCR_CHANNEL(STC_READ(sc, STC_GSCR1));
channel = CD180_GSCR_CHANNEL(STC_READ(sc, STC_GSCR1));