3 ms·
I wouldn’t say “boards”. The Sun MMU is/was quite simple (SRAM and a little TTL), only taking a small part of something like a 3/50 motherboard.
by pinewurst 4y ago
I wouldn’t say “boards”. The Sun MMU is/was quite simple (SRAM and a little TTL), only taking a small part of something like a 3/50 motherboard.
- kragen 4y agomaybe the sun 1 and sun 2 were uglier
- bitsavers 4y agoThe designs are all essentially the same, two levels of high speed SRAMs to give you segment/page tables. Some designs supported bigger SRAMS for more contexts. The schematics are all up on bitsavers. Originally, I had thought they came up with it at Stanford, but from memory it seems to be roughly the same setup used in the MIT CADR.
- kragen 4y agothank you very much for the explanation
- pinewurst 4y agoJust part of the board. An acquaintance used to own a Sun 100U which I vaguely remember as the proto Sun 2 Multibus CPU in a Sun 1 chassis. Not even an especially busy Multibus (1 before there was a 2) card.