Chapter 4 configuration options, 1 4-port hub, 1 hub configuration options – SMSC USB2514 User Manual
Page 18: 2 vbus detect, 2 36 qfn and 48 qfn feature differences, Table 4.1 36 qfn and 48 qfn feature differences, Chapter 4, Configuration options, Port hub 4.1.1, Hub configuration options