ASC_IOP_REG_DA1  1309 dev/ic/advlib.h #define ASC_READ_CHIP_DA1(iot, ioh)				bus_space_read_2((iot), (ioh), ASC_IOP_REG_DA1)
ASC_IOP_REG_DA1  1310 dev/ic/advlib.h #define ASC_WRITE_CHIP_DA1(iot, ioh)				bus_space_write_2((iot), (ioh), ASC_IOP_REG_DA1, data)