At 04:46 PM 11/24/2003 -0800, William Chops Westfield wrote:

>On Monday, Nov 24, 2003, at 13:03 US/Pacific, zumbi wrote:
>>
>>Do you know how to read a half duplex line and know, by hardware, how
>>to tell who is sending data, if master or slave ??


I've used hardware in the past, to set them to different pulldown currents, so that the master out-drove the slave. (or vice-versa)
Then the different voltage levels tell you who is talking, but you need an oscilloscope to see this.

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