[Apr/04/2004]

World Cup Volley '95
Data East, 1995

PCB Layout

DE-0430-2
|----------------------------------------------|
|          MBX-03.13J                MBX-02.13A|
|       LC7881         28MHz   DE52            |
|             YMZ280B-F              MBX-01.12A|
|                         CY7C185              |
|                         CY7C185    MBX-00.9A |
|             WE-02                            |
|J                                             |
|A                                             |
|M                 6264                        |
|M                             DE141           |
|A     DE223       6264                        |
|                                              |
|                                       WE-00  |
|                              WE-01           |
|                                              |
|TEST_SW           PN01-0.4F   6264            |
|         93C46.3K             6264            |
|                  PN00-0.2F   6264     DE156  |
|                              6264            |
|----------------------------------------------|

Notes:
      - CPU is unknown. It's chip DE156. The clock input is 7.000MHz on pin 90
        It's thought to be a custom-made encrypted ARM7-based CPU.
        The package is a Quad Flat Pack and has 100 pins.
      - YMZ280B-F clock: 14.000MHz (28 / 2)
        SANYO LC7881 clock: 2.3333MHz (28 / 12)
      - VSync: 58Hz
      - WE-00, WE-01 and WE-02 are PALs type GAL16V8

-