| 摘要 |
Method and apparatus for transmitting handshaking signals between two peer devices using only two signal lines. The apparatus is symmetrical in that either peer device uses substantially the same signals and logic states to rouse the other. Only two handshaking signals are defined, but each handshaking signal has a dual meaning that is determined by various intermediate logic states in each peer device. Thus, the same signal that is generated by peer device A and sent to peer device B to tell peer device B that peer device A is awake and ready to receive a data transmission, is also generated by peer device A and transmitted to peer device B to request peer device B to wake up.
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