HT Signals
The HT signals can be grouped into two broad categories (See Figure 2-6 on page 27):
The link signal group — used to transfer packets in both directions (High-Speed Signals).
The support signal group — that provides required resources such as power and reset, as well as other signals to support optional features such power management (Low-Speed Signals).
Figure 2-6. Primary HT Signal Groups
Link Packet Transfer Signals
The high-speed signals used for packet transfer in both directions across an HT link include:
CAD (command, address, data). Multiplexed signals that carry control packets (request, response, information) and data packets. ...
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