1 files changed, 59 insertions, 0 deletions
diff --git a/src/mame/machine/tv955kb.h b/src/mame/machine/tv955kb.h
new file mode 100644
index 00000000000..d79f4df14ed
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+++ b/src/mame/machine/tv955kb.h
@@ -0,0 +1,59 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+
+#ifndef MAME_MACHINE_TV955KB_H
+#define MAME_MACHINE_TV955KB_H
+
+#pragma once
+
+#include "cpu/mcs48/mcs48.h"
+//#include "machine/ripple_counter.h"
+//#include "sound/spkrdev.h"
+//#include "speaker.h"
+
+
+//**************************************************************************
+//  TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> tv955kb_device
+
+class tv955kb_device : public device_t
+{
+public:
+	tv955kb_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
+
+	// configuration
+	auto txd_cb() { return m_txd_cb.bind(); }
+	auto reset_cb() { return m_reset_cb.bind(); }
+
+	DECLARE_WRITE_LINE_MEMBER(write_rxd);
+
+	static constexpr feature_type unemulated_features() { return feature::SOUND; }
+
+protected:
+	// device-specific overrides
+	virtual void device_resolve_objects() override;
+	virtual void device_start() override;
+	virtual void device_add_mconfig(machine_config &config) override;
+	virtual ioport_constructor device_input_ports() const override;
+	virtual const tiny_rom_entry *device_rom_region() const override;
+
+private:
+	u8 keys_r();
+	DECLARE_WRITE_LINE_MEMBER(bell_w);
+	DECLARE_WRITE_LINE_MEMBER(txd_w);
+	DECLARE_WRITE_LINE_MEMBER(reset_w);
+
+	// line output callbacks
+	devcb_write_line m_txd_cb;
+	devcb_write_line m_reset_cb;
+
+	required_device<mcs48_cpu_device> m_mcu;
+	required_ioport_array<16> m_keys;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(TV955_KEYBOARD, tv955kb_device)
+
+#endif // MAME_MACHINE_TV955KB_H