31 Jan
2006
31 Jan
'06
5:32 p.m.
What this sounds like is that he wants something to build up a (say) 128 MB SIMM from 4 32
MB SIMMS, and have it be the same width. This sounds suspiciously like you're trying
to build a device to create a composite SIMM, which does require some external logic
(often implemented as a PAL). When composite SIMMS were made, they were the cause of some
"profanity sculpture", as they tended to not have consistant timing, if I
recall. The 8-bit to 32-bit adaptors were/are fairly common, but with 4-16 MB 32/(36)bit
SIMMS free to very cheap, not really worth pursuing.