Casio SK-5

Chip: NEC D23C256EAC-038 (mask DIP28 5V 27c256-compatible pinout but with inverted oe; pin1 - not connected; oe - active high; cs - active low)

Print:
~~~~~~~~~~~~~~~~
  NEC  8704KX
 D23C256EAC 038
~~~~~~~~~~~~~~~~

Also included lossless conversions of internal samples for your sampling delight.


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Internal demo ROM-Pack chip: OKI (MS)M5268V-56  (will be included in later update)

Print:
~~~~~~~~~~~
 OKI JAPAN
 M5268V-56
    7214
~~~~~~~~~~~

Contains 7 songs, uppermost nibble address seem to be just 0010xxxxxxxx.


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Percussion sound chip with maskrom: OKI (MS)M6294-05  (might someday be dumped as well)

Print:
~~~~~~~~~~~~~
 M6294-05
 OKI
      722020
~~~~~~~~~~~~~


I'll see if can palpate a way to dump this chip 16kbyte maskrom as well,
yet maybe it can only be done via decapsulation (which anyways may happen someday).
If I do, it will also be in some later update, and even if not, there will
be sample-perfect captures of all the rom drum waves and its marvellous sound effects.
I've already desoldered it and looked into its controls; its output is tdm with separate
time slots for each voice channel (4 voice time slots, each 4 clocks; 15.625kHz samplerate).
There are also some outputs (seemingly four separate voice outputs), but they are inactive or
not implemented in its firmware.


Edward d-tech
www.dtech.lv
