// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
OKI MSM58321RS Real Time Clock/Calendar emulation
**********************************************************************
_____ _____
CS2 1 |* \_/ | 16 Vdd
WRITE 2 | | 15 XT
READ 3 | | 14 _XT
D0 4 | MSM58321 | 13 CS1
D1 5 | RTC58321 | 12 TEST
D2 6 | | 11 STOP
D3 7 | | 10 _BUSY
GND 8 |_____________| 9 ADDRESS WRITE
**********************************************************************/
#pragma once
#ifndef __MSM58321__
#define __MSM58321__
#include "emu.h"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_MSM58321_D0_HANDLER(_devcb) \
devcb = &msm58321_device::set_d0_handler(*device, DEVCB_##_devcb);
#define MCFG_MSM58321_D1_HANDLER(_devcb) \
devcb = &msm58321_device::set_d1_handler(*device, DEVCB_##_devcb);
#define MCFG_MSM58321_D2_HANDLER(_devcb) \
devcb = &msm58321_device::set_d2_handler(*device, DEVCB_##_devcb);
#define MCFG_MSM58321_D3_HANDLER(_devcb) \
devcb = &msm58321_device::set_d3_handler(*device, DEVCB_##_devcb);
#define MCFG_MSM58321_BUSY_HANDLER(_devcb) \
devcb = &msm58321_device::set_busy_handler(*device, DEVCB_##_devcb);
#define MCFG_MSM58321_YEAR0(_year0) \
msm58321_device::set_year0(*device, _year0);
#define MCFG_MSM58321_DEFAULT_24H(_default_24h) \
msm58321_device::set_default_24h(*device, _default_24h);
// ======================> msm58321_device
class msm58321_device : public device_t,
public device_rtc_interface,
public device_nvram_interface
{
public:
// construction/destruction
msm58321_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
// static configuration helpers
template<class _Object> static devcb_base &set_d0_handler(device_t &device, _Object object) { return downcast<msm58321_device &>(device).m_d0_handler.set_callback(object); }
template<class _Object> static devcb_base &set_d1_handler(device_t &device, _Object object) { return downcast<msm58321_device &>(device).m_d1_handler.set_callback(object); }
template<class _Object> static devcb_base &set_d2_handler(device_t &device, _Object object) { return downcast<msm58321_device &>(device).m_d2_handler.set_callback(object); }
template<class _Object> static devcb_base &set_d3_handler(device_t &device, _Object object) { return downcast<msm58321_device &>(device).m_d3_handler.set_callback(object); }
template<class _Object> static devcb_base &set_busy_handler(device_t &device, _Object object) { return downcast<msm58321_device &>(device).m_busy_handler.set_callback(object); }
static void set_year0(device_t &device, int year0) { downcast<msm58321_device &>(device).m_year0 = year0; }
static void set_default_24h(device_t &device, bool default_24h) { downcast<msm58321_device &>(device).m_default_24h = default_24h; }
DECLARE_WRITE_LINE_MEMBER( cs2_w );
DECLARE_WRITE_LINE_MEMBER( write_w );
DECLARE_WRITE_LINE_MEMBER( read_w );
DECLARE_WRITE_LINE_MEMBER( d0_w );
DECLARE_WRITE_LINE_MEMBER( d1_w );
DECLARE_WRITE_LINE_MEMBER( d2_w );
DECLARE_WRITE_LINE_MEMBER( d3_w );
DECLARE_WRITE_LINE_MEMBER( address_write_w );
DECLARE_WRITE_LINE_MEMBER( stop_w );
DECLARE_WRITE_LINE_MEMBER( test_w );
DECLARE_WRITE_LINE_MEMBER( cs1_w );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) 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;
virtual bool rtc_feature_y2k() override { return m_year0 != 0; }
// device_nvram_interface overrides
virtual void nvram_default() override;
virtual void nvram_read(emu_file &file) override;
virtual void nvram_write(emu_file &file) override;
private:
static const device_timer_id TIMER_CLOCK = 0;
static const device_timer_id TIMER_BUSY = 1;
void update_input();
void update_output();
inline int read_counter(int counter);
inline void write_counter(int counter, int value);
int m_year0;
bool m_default_24h;
devcb_write_line m_d0_handler;
devcb_write_line m_d1_handler;
devcb_write_line m_d2_handler;
devcb_write_line m_d3_handler;
devcb_write_line m_busy_handler;
int m_cs2; // chip select 2
int m_write; // write data
int m_read; // read data
int m_d0_in; // d0
int m_d0_out; // d0
int m_d1_in; // d1
int m_d1_out; // d1
int m_d2_in; // d2
int m_d2_out; // d2
int m_d3_in; // d3
int m_d3_out; // d3
int m_address_write; // write address
int m_busy; // busy flag
int m_stop; // stop flag
int m_test; // test flag
int m_cs1; // chip select 1
UINT8 m_address; // address latch
UINT8 m_reg[13]; // registers
// timers
emu_timer *m_clock_timer;
emu_timer *m_busy_timer;
};
// device type definition
extern const device_type MSM58321;
#endif