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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/**********************************************************************
rtc4543.h - Epson R4543 real-time clock emulation
by R. Belmont
**********************************************************************/
#ifndef MAME_MACHINE_RTC4543_H
#define MAME_MACHINE_RTC4543_H
#pragma once
#include "dirtc.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> rtc4543_device
class rtc4543_device : public device_t,
public device_rtc_interface
{
static char const *const s_reg_names[7];
public:
// construction/destruction
rtc4543_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void ce_w(int state);
void wr_w(int state);
void clk_w(int state);
int data_r();
void data_w(int state);
auto data_cb() { return m_data_cb.bind(); }
protected:
rtc4543_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// device_rtc_interface overrides
virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second) override;
virtual bool rtc_feature_leap_year() const override { return true; }
// helpers
virtual void ce_rising();
virtual void ce_falling();
virtual void clk_rising();
virtual void clk_falling();
void load_bit(int reg);
void store_bit(int reg);
void advance_bit();
void update_effective();
TIMER_CALLBACK_MEMBER(advance_clock);
devcb_write_line m_data_cb;
int m_ce;
int m_clk;
int m_wr;
int m_data;
int m_regs[7];
int m_curbit;
// timers
emu_timer *m_clock_timer;
};
// ======================> jrc6355e_device
class jrc6355e_device : public rtc4543_device
{
public:
// construction/destruction
jrc6355e_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// rtc4543 overrides
virtual void ce_rising() override;
virtual void ce_falling() override;
virtual void clk_rising() override;
virtual void clk_falling() override;
};
// device type definition
DECLARE_DEVICE_TYPE(RTC4543, rtc4543_device)
DECLARE_DEVICE_TYPE(JRC6355E, jrc6355e_device)
#endif // MAME_MACHINE_RTC4543_H
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