summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/play_2.cpp
diff options
context:
space:
mode:
author AJR <ajrhacker@users.noreply.github.com>2017-01-14 00:07:49 -0500
committer AJR <ajrhacker@users.noreply.github.com>2017-01-14 00:08:54 -0500
commit8418a1606914c579af1489398085f185440e2f75 (patch)
tree5547da934907f22e35d29773de8267221f0453a3 /src/mame/drivers/play_2.cpp
parent7814a8403c2b63ac4454e1ed0a2c758783f04320 (diff)
Identify EFO90503 and note usage; improve notes on EFO sound boards (nw)
Diffstat (limited to 'src/mame/drivers/play_2.cpp')
-rw-r--r--src/mame/drivers/play_2.cpp17
1 files changed, 11 insertions, 6 deletions
diff --git a/src/mame/drivers/play_2.cpp b/src/mame/drivers/play_2.cpp
index b62b562d8d1..c82e80a76cf 100644
--- a/src/mame/drivers/play_2.cpp
+++ b/src/mame/drivers/play_2.cpp
@@ -3,12 +3,17 @@
/**********************************************************************************
PINBALL
-Playmatic MPU 2
-
-4 different sound boards were used.
-- Those without sound roms use a CDP1863
-- Zira uses a COP402 and a AY-3-8910
-- Cerberus uses a 90435 (appears to be a CDP1802) and a 90503 (unknown)
+Playmatic MPU-C
+
+The IOS board common to all games provides sound effects through the CDP1863.
+4 different add-on sound boards were also used:
+- Black Fever has the Speaking System board, which produces analog signals for
+ controlling an 8-track tape player.
+- Zira uses the Sound-2 board with a COP402 and AY-3-8910. The latter device is
+ also supposedly used to control lights through a separate connector.
+- Cerberus uses the Sound-3 board with a 90435 processor, which is most likely a
+ CDP1802 by another name. The 90503 "synthesizer" is the only sound IC on this
+ board; it has a TI logo and seems at least pin-compatible with TMS52xx.
- Mad Race uses a Sound Board IV (same as MPU-3 and later), but I/O ports
that talk to it are unknown.