def METHOD_NAME():
    db = Database(util.get_db_root(), util.get_part())
    grid = db.grid()
    for tile in sorted(grid.tiles()):
        loc = grid.loc_of_tilename(tile)
        gridinfo = grid.gridinfo_at_loc(loc)
        if gridinfo.tile_type in ['DSP_L', 'DSP_R']:
            for site in sorted(gridinfo.sites.keys()):
                if gridinfo.sites[site] == 'DSP48E1':
                    yield tile, site