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Diffstat (limited to 'src/mame/drivers/alphatro.cpp')
-rw-r--r--src/mame/drivers/alphatro.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/alphatro.cpp b/src/mame/drivers/alphatro.cpp
index 375f5cb24cd..815272e277c 100644
--- a/src/mame/drivers/alphatro.cpp
+++ b/src/mame/drivers/alphatro.cpp
@@ -751,7 +751,7 @@ MACHINE_CONFIG_START(alphatro_state::alphatro)
WAVE(config, "wave", "cassette").add_route(ALL_OUTPUTS, "mono", 0.25);
/* Devices */
- UPD765A(config, m_fdc, true, true);
+ UPD765A(config, m_fdc, 16_MHz_XTAL / 2, true, true); // clocked through SED-9420C
m_fdc->intrq_wr_callback().set(FUNC(alphatro_state::fdc_irq_w));
m_fdc->drq_wr_callback().set(m_dmac, FUNC(i8257_device::dreq2_w));
MCFG_FLOPPY_DRIVE_ADD("fdc:0", alphatro_floppies, "525dd", alphatro_state::floppy_formats)