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-rw-r--r--src/emu/machine/n68681.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/emu/machine/n68681.c b/src/emu/machine/n68681.c
index e8d01d700c6..1baed11500a 100644
--- a/src/emu/machine/n68681.c
+++ b/src/emu/machine/n68681.c
@@ -492,7 +492,12 @@ void duartn68681_device::set_ISR_bits(int mask)
duart68681_channel::duart68681_channel(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, DUART68681CHANNEL, "DUART 68681 channel", tag, owner, clock),
- device_serial_interface(mconfig, *this)
+ device_serial_interface(mconfig, *this),
+ MR1(0),
+ MR2(0),
+ SR(0),
+ rx_fifo_num(0),
+ tx_enabled(0)
{
}