ASC_IOP_REG_DA0
#define ASC_READ_CHIP_DA0(iot, ioh) bus_space_read_2((iot), (ioh), ASC_IOP_REG_DA0)
#define ASC_WRITE_CHIP_DA0(iot, ioh) bus_space_write_2((iot), (ioh), ASC_IOP_REG_DA0, data)