+Big discussion via email yesterday motivated by Chuck about whether we can add
+a capability to use the Can-Do modules as a bit pipe between a CPU in the
+experiment module and the IHU. The end result is that yes, we can do it.
+
+My proposal is that we implement byte-wide in and out busses. Two of the
+"spare" outputs and two of the analog input channels get taken over to serve
+as request/acknowledge handshake lines. The remaining analog inputs and the
+remaining two digital outputs continue to behave as they would in "normal"
+mode. Data is always sent in blocks of 8 bytes. The module's stream addresses
+for this capability are the same as for the command/control protocol but with
+the high order bit flipped, so that this bit-pipe function runs at lower
+priority than command and telemetry.
+
+[[!tag tags/amsat]]