GLB_WRITE
GLB_WRITE(sc, GLB_DBUFFER, GLB_DBUFFER_DOUBLE_BUFFER_RDY);
GLB_WRITE(sc, GLB_SIZE, size);
GLB_WRITE(sc, GLB_DBUFFER, GLB_DBUFFER_DOUBLE_BUFFER_RDY);
GLB_WRITE(sc, GLB_DBUFFER, GLB_DBUFFER_DOUBLE_BUFFER_RDY);
GLB_WRITE(sc, GLB_CTL, GLB_CTL_EN);