CCU v2.00 CF30288 pinout
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+---v---+
CPU M2 -> |01 28| ??
CPU D4 -> |02 27| ??
CPU D3 -> |03 26| ??
CPU D2 -> |04 25| ??
CPU D1 -> |05 24| -> ROM /OE
CPU D0 -> |06 23| ??
VCC -- |07 22| -- GND
CPU A0 -> |08 21| ??
CPU A13 -> |09 20| -> INNER3
CPU A14 -> |10 19| -> OUTER1
/ROMSEL -> |11 18| -> INNER2
CPU R/W -> |12 17| -> OUTER0
?? |13 16| -> INNER1
?? |14 15| -> INNER0
'-------'
Source: [1]
