It is a line, I/O data, not a bus, sorry.
It would be similar to the telecards I/O.
Thanks !

Tom Deutschman wrote:

>>    I have a half duplex bus that i want to snif, i am
>>building my own sniffer, based on a PIC 16F628, but i am
>>stuck with one problem, i am not blocking, i am sniffing the
>>bus to debug, so i don't know how discern who is speaking on
>>the bus (it is half duplex). Do you know how to could i do on
>>hardware to discern who is speaking on the bus, if the master
>>or the slave?
>>
>>
>
>What type of a bus are you sniffing?
>
>Tom
>
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