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// license:BSD-3-Clause
// copyright-holders: Angelo Salese
/***************************************************************************
uPD4991a RTC
***************************************************************************/
#ifndef MAME_MACHINE_UPD4991A_H
#define MAME_MACHINE_UPD4991A_H
#pragma once
#include "dirtc.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> upd4991a_device
class upd4991a_device : public device_t, public device_rtc_interface
{
public:
// construction/destruction
upd4991a_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
// I/O operations
void address_w(offs_t offset, u8 data);
u8 data_r(offs_t offset);
void data_w(offs_t offset, u8 data);
protected:
// device-level overrides
virtual void device_validity_check(validity_checker &valid) const override;
virtual void device_start() override ATTR_COLD;
virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second) override;
TIMER_CALLBACK_MEMBER(clock_tick);
private:
emu_timer *m_timer_clock;
u8 m_rtc_regs[8];
u8 m_address;
};
// device type definition
DECLARE_DEVICE_TYPE(UPD4991A, upd4991a_device)
#endif // MAME_MACHINE_UPD4991A_H
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