CACHE SRAM versions

[Spir0]

1) Where I can find informations about CACHE SRAM ?

http://cygnus.speccy.cz/popis_isorom128.php

2) Is supported only 16 / 32kB versions ?

Usually yes, but if you want you can use more , only form a higher address bit

3) CACHE SRAM is used as ROM replacement ?

In some releases yes SRAM replace ROM via setting some bit in hardware port, it change statement on /CE and /OE pins.

4) Memory 32kB-???kB is paged as original rom(via bit D4 on port 7FFD) ?

If you using as SRAM over ROM - yes.

5) Write protect feature is supported ?

Yes

6) NMI button call TR-DOS rom or CACHE sram ?

Look answer 4

7) is CACHE SRAM is active then RESET button always ronnect ZX rom ?

Not always, some circuits don't use /RESET pin - so after RESET you still with SRAM mode on

8) Is CACHE SRAM supported ? What version ?

As i know SRAM supported in GLUK Reset Service and in some commanders (Real Commander)