I should point out the ERP is done the same way. There are a couple
of issues. First off I *think* you can't have multiple SELREGs in one
equipment. I could be wrong. I'm quite sure they can't be nested and
I think it's also true you can't have more then one.
Secondly is the issue of what the equipment looks like. Every time you
issue a SELREG is actually writes that register's word into the data
stream. So in the case of the LIP the data would have to look like:
SEL WORD
maybe 6 data words from SM3
SEL WORD
maybe another 6 words from SM4
I thought that this wouldn't be so great for decoding purposes
especially since you might imagine these SEL words changing in the
future. The data isn't really self describing so I feel that a fixed
length equipment is better in this case.
However for you I guess it wouldn't really matter since you have
already got all of your data and you could just ignore the extra
SELREG words at the bottom of the equipment. I guess the upshot of
this is that you can never readout more then one CSPAM plane in one
microvax as things stand now. Is that right? Could this explain some
of the "missing buffers" you saw before?
-Chris