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-rw-r--r--src/mame/drivers/model3.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/model3.cpp b/src/mame/drivers/model3.cpp
index ab081d0b2a7..a9fcf449543 100644
--- a/src/mame/drivers/model3.cpp
+++ b/src/mame/drivers/model3.cpp
@@ -5805,7 +5805,7 @@ static MACHINE_CONFIG_DERIVED(scud, model3_15)
MCFG_DEVICE_ADD("uart", I8251, 8000000) // uPD71051
MCFG_I8251_TXD_HANDLER(DEVWRITELINE(DSBZ80_TAG, dsbz80_device, write_txd))
- MCFG_CLOCK_ADD("uart_clock", 100000) // unknown rate
+ MCFG_CLOCK_ADD("uart_clock", 500000) // 16 times 31.25MHz (standard Sega/MIDI sound data rate)
MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("uart", i8251_device, write_txc))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("uart", i8251_device, write_rxc))
MACHINE_CONFIG_END