ISP1561

ISP1561 Hi-Speed Universal Serial Bus PCI Host Controller Rev. 02 — 5 March 2007 Product data sheet 1. General description The ISP1561 is a Peripheral Component Interconnect (PCI)-based, single-chip Universal Serial Bus (USB) Host Controller. It integrates two Original USB Open Host Controller Interface (OHCI) cores, one Hi-Speed USB Enhanced Host Controller Interface (EHCI) core, and four transceivers that are compliant with Hi-Speed USB and Original USB. The functional parts of the ISP1561 are fully compliant with Ref. 8 “Universal Serial Bus Specification”, Ref. 4 “Open Host Controller Interface Specification for USB”, Ref. 2 “Enhanced Host Controller Interface Specification for Universal Serial Bus”, Ref. 6 “PCI Local Bus Specification”, and Ref. 5 “PCI Bus Power Management Interface Specification”. Integrated high performance USB transceivers allow the ISP1561 to handle all Hi-Speed USB transfer speed modes: high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s). The ISP1561 provides four downstream ports, allowing simultaneous connection of USB devices at different speeds. The ISP1561 provides three downstream port status indicators, GoodLink along with green and amber LEDs, to allow user-rich messages of the root hub downstream ports status, without requiring detailed port information to be reflected in internal registers. The ISP1561 is fully compatible with various operating system drivers, such as Microsoft Windows standard OHCI and EHCI drivers th...