Talk:MIT UNIBUS XGP interface

SAIL hardware interface?

I found these SUDS drawings dated 1973, in an archived ITS directory called "XGP". I was hoping they would explain MIT's hardware interface, but they don't seem to match the PDP-11 software. Since I see references to IOBUS, CONO, CONI, I suspect they are for SAIL's XGP interface. I converted the files to SVG format; feel free to take a look. http://lars.nocrew.org/tmp/xgp-drawings/ Larsbrinkhoff (talk) 07:29, 30 January 2024 (CET)

I am 99.4% sure they are for the PDP-10 I/O bus (not only a reference in drawing 'COMND' to "CONO SET", and also to "CONI" in 'STATUS', but if you look at the way "DEVSEL" is generated, on 'COMND' - and neither there or anywhere else any reference to MSYN or SSYN), so not the UNIBUS interface from MIT (or CMU). I designed several UNIBUS interfaces, and this ain't one! Jnc (talk) 15:06, 30 January 2024 (CET)

Data encoding

Are those encodings interpreted by the UNIBUS XGP interface, or by the XGP itself? Jnc (talk) 14:10, 31 January 2024 (CET)