784 Meta description of the site: Introduction to USB. This series of articles covers: The Universal Serial Bus Specification, the USB Implementors Forum, data rates, low speed, full speed high speed, architecture, OHCI, UHCI, EHCI controllers, On-the Go, Cables, D+, D- VBUS, connectors, Series A and Series B plugs and receptacles, pin assignments, cable types, detachable, captive, power distribution, self-powered, bus-powered, high power, hot-pluggable, transceivers, speed identification, line states, J K and SE0 states, EOP, suspend, resume, Keep Alive, Packets, Serial Interface Engine (SIE), Endpoints, pipes, transactions, Cyclic Redundancy Code (CRC), PID, OUT, IN, SOF, SETUP, DATA0, DATA1, DATA2, MDATA, ACK, NAK, STALL, NYET, PRE, ERR, SPLIT, PING, token, handshake, data, start of frame, transactions,

Title of the website: 15 USB Made Simple