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-rw-r--r--src/mame/drivers/sfcbox.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mame/drivers/sfcbox.cpp b/src/mame/drivers/sfcbox.cpp
index 1317fa7a7bc..4e03d1f0285 100644
--- a/src/mame/drivers/sfcbox.cpp
+++ b/src/mame/drivers/sfcbox.cpp
@@ -451,7 +451,8 @@ static MACHINE_CONFIG_START( sfcbox )
MCFG_CPU_ADD("maincpu", _5A22, 3580000*6) /* 2.68Mhz, also 3.58Mhz */
MCFG_CPU_PROGRAM_MAP(snes_map)
- MCFG_CPU_ADD("soundcpu", SPC700, 2048000/2) /* 2.048 Mhz, but internal divider */
+ // runs at 24.576 MHz / 12 = 2.048 MHz
+ MCFG_CPU_ADD("soundcpu", SPC700, XTAL_24_576MHz / 12)
MCFG_CPU_PROGRAM_MAP(spc_mem)
MCFG_QUANTUM_PERFECT_CPU("maincpu")