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-rw-r--r--src/devices/machine/tmc0430.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/machine/tmc0430.h b/src/devices/machine/tmc0430.h
index a8efe012bdc..f0ae99b8d06 100644
--- a/src/devices/machine/tmc0430.h
+++ b/src/devices/machine/tmc0430.h
@@ -54,7 +54,7 @@ public:
int debug_get_address();
// Allow for checking the state of the GROM so we can turn off the clock
- bool idle() { return m_phase == 0; }
+ bool idle() { return (m_phase == 0 && m_current_clock_level==CLEAR_LINE); }
protected:
void device_start(void) override;