diff options
author | ClawGrip <clawgrip@hotmail.com> | 2019-12-10 15:42:23 +0100 |
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committer | Ivan Vangelista <mesgnet@yahoo.it> | 2019-12-10 15:42:23 +0100 |
commit | 4486477560c3144ebc2ade00a4ab63500ea70015 (patch) | |
tree | b998b96808c0e79dcb8394047a1310b0b6a2418e | |
parent | 5a70dfca5642a83e26c0e40b6a62b00e57cb63f9 (diff) |
playmark.cpp: Add note about a S87C751-based World Beach Volley (nw) (#6035)
* playmark.cpp: Add note about a S87C751-based World Beach Volley (nw)
* Restore comment (nw)
-rw-r--r-- | src/mame/drivers/playmark.cpp | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/src/mame/drivers/playmark.cpp b/src/mame/drivers/playmark.cpp index 8d21a17ca9c..1adc160f6ea 100644 --- a/src/mame/drivers/playmark.cpp +++ b/src/mame/drivers/playmark.cpp @@ -43,17 +43,47 @@ to correct the music playback sequencing and also allow sound effect samples to play on any of the three available sample channels. The fourth channel is reserved for music playback. -HotMind and presumably Lucky Boom have a Jamma expansion board that plugs onto the -main boards Jamma connector and provides extra I/O using the generic Player-2 pins. +There is another World Beach Volley with a (undumped) S87C751 for sound instead of a +PIC (also with an OKI M6295) which fully matches "World Beach Volley (set 1)" for the +other ROMS. It's an original PCB from Playmark Italy. + +HotMind, World Beach Volley and presumably Lucky Boom have a JAMMA expansion board +that plugs onto the main boards Jamma connector and provides extra I/O using the +generic Player-2 pins. The expansion boards provides I/O for the Token and Ticket dispensers, drive circuit for Coin-In Counter and Credit-Out Counter. In the case of HotMind, a 93C46 EEPROM for storing game config/stats. The Expansion board then has a male Jamma connector that you plug into your Jamma harness. +The World Beach Volley JAMMA expansion board for the 87C751 version follows this layout: + + PLAYMARK ITALY 1995 + LINK2 + ____________________________ + |___ ___________ | + | | TDA1510AQ| | + ___| |__________| | + |__ | +J |__ | +A __| | +M |__ | +M |__ ___________ | +A |__ |_MCT1413P_| | + |__ | + |__ _|___ + |__ ____________ |DB9| + |__ |SN74LS245N_| | | To main PCB + |__ ____________ |___| + |__ |S87C751-4N24 | + |__ ______ | + ___| |XTAL|<-12.000 | + | |____| | + |__________________________| + TODO: -- World Beach Volley and Hard Times sound is controlled by a PIC16C57 whose internal - ROM is currently missing. +- Hard Times sound is controlled by a PIC16C57 whose internal ROM is currently missing. +- Dump the World Beach Volley sound S87C751 internal ROM. - Lucky Boom has some minor colour issue with the background - see the title screen. The game selects the wrong colour for some tiles. The tiles should be colour 0x01 not 0x02. Affects the backgrounds in game however it's barely noticeable. |