MEMORY PAGING IN LOW 16kB

[VELESOFT]

This is ROMCS connection on real ZX Spectrum/Timex/Didaktik computers:

This connection enable connect external memory.



And this is russian connection on Pentagon 1024SL:


Is impossible connect to this ZX-BUS connector any old ZX interface with external memory. This interfaces must be modified for work on russian clones. (can connect external memory only if in low 16kB is set rom - external interface set signal /RDROM to log.1).

---------- Post added at 12:07 ---------- Previous post was at 12:05 ----------

Exist any russian interface with external memory mapped on rom area ?