RC-2014 comparable 64KB Auto-Store RAM Card with SOIC#

CAUTION! UNTESTED – WORK IN PROGRESS – UNDER CONSTRUCTION

sent to jlcpcb as part of the my November order.

- This card can be used with 16Bit or 20Bit or 24Bit Addressing.
- This card can be built as a 40pin card for 16Bit only.
- This card allow for a 64k CP/M system without any ROM swap-out logic.
- This card is GREAT for programmers as it allows the Boot Rom to update itself in place.

New configurations can be loaded into the STK14C88 and after testing the Current Continence of the STK14C88 
can be saved to its nonvolatile Quantum Trap.

The Card supports:
- One x STK14C88 256kb (32KB) Auto-store Ram 
        DIP or SOIC or ~25mm SOIC Breakout Board
and
- One x HM62256  256kb (32KB) Static Ram
        DIP or SOIC
  with optional 
    DS1213C SmartSocket
    or
    DS1216C SmartWatch
or
- One x AT28C256 256kb (32KB) EEProm
or
- One x DS-1230  256kb (32KB) nvRAM

Chip Select allows address swapping
    1-2 3-4 = U1@0000h U2@8000h
    1-3 2-4 = U1@8000h U2@0000h

Optional 74ls682 for 20Bit or 24Bit Address Decoding
    For 20Bit the top 4 jumpers on 24pin header must be installed
    and only the last 4 jumpers are used to select address.
    (this ties A20-A23 to +5v so DO NOT jumper with z280 etc)

Optional SOIC Power Jumpers allow a soldered in SOIC to be disabled so a DIP can be used

Software Store / Recall
READ from the following five Address

U1@0000h       U1@8000h
0E38h    or    8E38h
31C7h    or    B1C7h
03E0h    or    83E0h
3C1Fh    or    BC1Fh
303Fh    or    B03Fh

Then 
READING
0FC0h    or    8FC0h
Will STORE the STK14C88 Current RAM to nonvolatile Quantum Trap
or
READING
0C60h    or    8C60h
Will RECALL the STK14C88 RAM from the nonvolatile Quantum Trap

A STORE or RECALL take ~10ms during which time the WAIT signal keeps the CPU paused

The STK14C88 acts as a regular RAM with unlimited READS & WRITES
BUT try to avoid unnecessary STORE Cycles as the chip is limited to 1,000,000!