USB 2.0 Signaling
- Line States
- Detached
- Attached/Idle
- Differential Signal Encodings
- Reset
- EOP(End of Packet)
- Suspend/Resume
- Keep Alive for low speed only
- Speed Identification
- At the device end of the link a 1.5 kohm resistor pulls one of the lines up to a 3.3V supply derived from VBUS.
- This is on D- for a low speed device, and on D+ for a full speed device.
page revision: 10, last edited: 01 Nov 2012 09:10