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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Microelectronic-Marin E050-16 Real Time Clock emulation
**********************************************************************
_____ _____
Vdd1 1 |* \_/ | 16 Vdd2
OSC IN 2 | | 15 Clk
OSC OUT 3 | | 14 XOUT
_STOP 4 | E05-16 | 13 DI/O
_RESET 5 | E050-16 | 12 _SEC
_OUTSEL 6 | | 11 _MIN
_DAY 7 | | 10 _HRS
Vss 8 |_____________| 9 _CS
**********************************************************************/
#ifndef MAME_MACHINE_E0516_H
#define MAME_MACHINE_E0516_H
#pragma once
#include "dirtc.h"
class e0516_device : public device_t, public device_rtc_interface
{
public:
// construction/destruction
e0516_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto outsel_rd_cb() { return m_read_outsel.bind(); }
auto sec_wr_cb() { return m_write_sec.bind(); }
auto min_wr_cb() { return m_write_min.bind(); }
auto hrs_wr_cb() { return m_write_hrs.bind(); }
auto day_wr_cb() { return m_write_day.bind(); }
void cs_w(int state);
void clk_w(int state);
void dio_w(int state);
int dio_r();
void reset_w(int state);
protected:
// device-level overrides
virtual void device_start() override;
// 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;
TIMER_CALLBACK_MEMBER(timer_tick);
devcb_read_line m_read_outsel;
devcb_write_line m_write_sec;
devcb_write_line m_write_min;
devcb_write_line m_write_hrs;
devcb_write_line m_write_day;
private:
bool m_cs;
bool m_clk;
int m_cycle;
u64 m_data_latch;
int m_reg_latch;
int m_state;
int m_bits_left;
bool m_dio;
bool m_reset;
offs_t get_address() { return (m_reg_latch >> 1) & 0x07; }
// timers
emu_timer *m_timer;
};
// device type definition
DECLARE_DEVICE_TYPE(E0516, e0516_device)
#endif // MAME_MACHINE_E0516_H
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