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Diffstat (limited to 'src/devices/machine/mc14411.cpp')
-rw-r--r--src/devices/machine/mc14411.cpp9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/devices/machine/mc14411.cpp b/src/devices/machine/mc14411.cpp
index 64bf476e2c4..fb24372e7bd 100644
--- a/src/devices/machine/mc14411.cpp
+++ b/src/devices/machine/mc14411.cpp
@@ -251,7 +251,8 @@ void mc14411_device::rate_select_w(uint8_t data)
if (m_divider != (data & 3))
{
m_divider = data & 3;
- notify_clock_changed();
+ if (started())
+ notify_clock_changed();
}
}
@@ -267,7 +268,8 @@ void mc14411_device::rsa_w(int state)
if ((m_divider & RSA) != (state == ASSERT_LINE ? RSA : 0))
{
m_divider = (m_divider & ~RSA) | (state == ASSERT_LINE ? RSA : 0);
- notify_clock_changed();
+ if (started())
+ notify_clock_changed();
}
}
@@ -283,7 +285,8 @@ void mc14411_device::rsb_w(int state)
if ((m_divider & RSB) != (state == ASSERT_LINE ? RSB : 0))
{
m_divider = (m_divider & ~RSB) | (state == ASSERT_LINE ? RSB : 0);
- notify_clock_changed();
+ if (started())
+ notify_clock_changed();
}
}