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Title: - Avalon chip datasheet - Post by: intron on May 21, 2013, 10:50:23 PM Hi,
Read the datasheet of the Avalon 'A3256-Q48 SHA256 Processor' and to me there are few things not really clear about this REPORT_x pins. They seem open drain outputs, there are pull-ups required, so it looks like the REPORT_x lines of all Avalon chips can be tied togeter to form a party-line. This makes sense as it saves a lot of pins on the microcontroller. But if so, how are contentions resolved when two or more chips have found a golden nonce at the same time? intron PS: still trapped in the newbie box...:) |