Message #120629, posted by PaulV at 21:05, 17/6/2012, in reply to message #120628
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Posts: 135
Scratch that. I don't need it. I'd misinterpreted the mapping of Latch A and Latch B.
It turns out I only need Latch B to control both Aux1 and Aux 2 passing &20 to set Aux1 and &40 to set Aux2 as per the bit mapping in the Acorn TRM's for Latch B.