MEDIATEK Ralink MT7620 - USB Host Controller & PHY

PGMT7620_V.1.0_040503
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MT7620 PROGRAMMING GUIDE
Integrated 802.11n MAC/BBP and 2.4 GHz RF/FEM Router-on-a-Chip
2.17 USB Host Controller & PHY
2.17.1 Features
 Complies with the USB 2.0 Specifications
 Complies with Host Controller Interface (OHCI) Specifications, Version 1.0a.
 Supports ping and split transactions
 Descriptor and data prefetching.
 Complies with Enhanced Host Controller Interface (EHCI) Specifications, Version 1.0, and the Open Host
Controller Interface (OHCI) Specification, Version 1.0a.
2.17.2 Block Diagram
USB 2.0 EHCI Controller
USB 1.1 OHCI
Controller
Bus
Wrapper
Data Ram Desc Ram
UPHY0
pbus
rbus
Strap signal Sideband signal
USB Host
Controller
Port 0
Figure 2-18 USB Host Controller & PHY Block Diagram
2.17.3 Register Description (base: 0x101C.0000)
NOTE: To program EHCI and OHCI registers and initialize the core, refer to the Enhanced Host
Controller Interface Specification for Universal Serial Bus and Open Host Controller Interface
Specification for USB, respectively.