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Introduction
the Universal Serial Bus
USB History
Bus Topology
The maximum of 5 hubs can be connected in series HOST
Physical layer flow
NRZI (non return to zero inverted)
Electrical
Timing
Mechanical
Measuring signal quality
USB bus states
USB LS/FS
LS Idle
K-State (FS)
Connect (FS)
Switching to HS sequence
USB-C and power delivery
USB OTG