VFB_STATEINDEX
stateindex = vfb_read1(sc, VFB_STATEINDEX);
vfb_write1(sc, VFB_STATEINDEX, VFB_STATEINDEX_IR);
vfb_pacepoll1(sc, VFB_STATEINDEX, VFB_STATEINDEX_IR, 0xff);
vfb_write1(sc, VFB_STATEINDEX, stateindex);
stateindex = vfb_read1(sc, VFB_STATEINDEX);
vfb_write1(sc, VFB_STATEINDEX, VFB_STATEINDEX_IR);
vfb_write1(sc, VFB_STATEINDEX, VFB_STATEINDEX_S1);
vfb_pacepoll4(sc, VFB_STATEINDEX, 0, 0);
vfb_write1(sc, VFB_STATEINDEX, stateindex);
stateindex = vfb_read1(sc, VFB_STATEINDEX);
vfb_write1(sc, VFB_STATEINDEX, VFB_STATEINDEX_PC);
vfb_pacepoll1(sc, VFB_STATEINDEX, VFB_STATEINDEX_PC, 0xff);
vfb_write1(sc, VFB_STATEINDEX, stateindex);
stateindex = vfb_read1(sc, VFB_STATEINDEX);
vfb_write1(sc, VFB_STATEINDEX, VFB_STATEINDEX_PC);
vfb_pacepoll1(sc, VFB_STATEINDEX, VFB_STATEINDEX_PC, 0xff);
vfb_write1(sc, VFB_STATEINDEX, stateindex);
vfb_write1(sc, VFB_STATEINDEX, VFB_STATEINDEX_PC);
vfb_write1(sc, VFB_STATEINDEX, VFB_STATEINDEX_PC);