IG4_REG_FS_SCL_LCNT
REGDUMP(sc, IG4_REG_FS_SCL_LCNT);
v = reg_read(sc, IG4_REG_FS_SCL_LCNT);
reg_write(sc, IG4_REG_FS_SCL_LCNT, v);
reg_write(sc, IG4_REG_FS_SCL_LCNT, 125);