ASC_IOP_REG_DC0  1311 dev/ic/advlib.h #define ASC_READ_CHIP_DC0(iot, ioh)				bus_space_read_2((iot), (ioh), ASC_IOP_REG_DC0)
ASC_IOP_REG_DC0  1312 dev/ic/advlib.h #define ASC_WRITE_CHIP_DC0(iot, ioh)				bus_space_write_2((iot), (ioh), ASC_IOP_REG_DC0, data)