Chapter 10. Error Detection And Handling
The Previous Chapter
Rather than requiring HT devices to incorporate additional pins for signaling system-related items such as power management events, System Management messages are defined that permit signaling via transactions, thereby creating virtual wires. The previous chapter defined the mechanism used to send these messages, by detailing the System Management packets and protocol. Some System Management functions such as changing the operating frequency of an HT link require that transactions be stopped. This chapter also introduced the ability to temporarily disconnect the links to allow these types of state change and to save power.
This Chapter
As indicated in the chapter title, there are two ...
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