Cash

Here is the cache scheme

KD522
TURBO ------------|>|-----------------|
__ |
A14 ------|1 |----------------| |
A15 -------|__| | |
| |
_____ | |
/RES -----------------oR| T |--|------|------------------ BLOCK_ROM
A7 -----------------|D| | | | __
10k |--/C| | ------|--------|1 |------ 18 vyv. RU10 /CS
+5V ---/\/\/---- -|--oS| o--------- --------|__|
Magic/Magic+ | | |_|___|
/NMI ---/ -------| |______
|
__ __ | K15533LL1
A2 ----|1 |-----|1 |---| K1533TM2
/RD ----|__| |--|__|
/IORQ ----------|

/MREQ --------------------------------------------------- 20 vyv. RU10 /OE
/WR --------------------------------------------------- 21 vyv. RU10 /WR

The BLOCK_ROM signal goes to 20 or 22 pins of the PZU (if they are not connected to "ground")
the plug element ILI, mixed with the step signal, which goes to the PZU.
Adpesnye inputs and the data bus of the RU10 are connected to the corresponding signals on the
ppocessope.
If there is no TURBO, it may not be a diode put.
The Magic/Magic+ button allows you to run Magic not in TR-DOS, but inprogram
located in the cache.

$$$ With best wishes ... Alex

TURBO ------------|>|---
__
A14 ------|1 |---
A15--------|__|

_____
/RES -----------------oR| T |
A7 -----------------|D| |
10k --/C| |
+5V ---/\/\/-*----|--oS| o
| | |_|___|
/NMI ---/ ----- |

Here is the cache scheme
TURBO -----------|>|---
__
A14 ------|1 |---
A15--------|__|