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/**********************************************************************
OKI MSM5832 Real Time Clock/Calendar emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
_____ _____
Vdd 1 |* \_/ | 18 HOLD
WRITE 2 | | 17 _XT
READ 3 | | 16 XT
A0 4 | | 15 +- 30 ADJ
A1 5 | MSM5832 | 14 TEST
A2 6 | | 13 GND
A3 7 | | 12 D3
CS 8 | | 11 D2
D0 9 |_____________| 10 D1
**********************************************************************/
#pragma once
#ifndef __MSM5832__
#define __MSM5832__
#include "emu.h"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_MSM5832_ADD(_tag, _clock) \
MCFG_DEVICE_ADD(_tag, MSM5832, _clock)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> msm5832_device_config
class msm5832_device_config : public device_config,
public device_config_rtc_interface
{
friend class msm5832_device;
// construction/destruction
msm5832_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
public:
// allocators
static device_config *static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
virtual device_t *alloc_device(running_machine &machine) const;
};
// ======================> msm5832_device
class msm5832_device : public device_t,
public device_rtc_interface
{
friend class msm5832_device_config;
// construction/destruction
msm5832_device(running_machine &_machine, const msm5832_device_config &_config);
public:
DECLARE_READ8_MEMBER( data_r );
DECLARE_WRITE8_MEMBER( data_w );
void address_w(UINT8 data);
DECLARE_WRITE_LINE_MEMBER( adj_w );
DECLARE_WRITE_LINE_MEMBER( test_w );
DECLARE_WRITE_LINE_MEMBER( hold_w );
DECLARE_WRITE_LINE_MEMBER( read_w );
DECLARE_WRITE_LINE_MEMBER( write_w );
DECLARE_WRITE_LINE_MEMBER( cs_w );
protected:
// device-level overrides
virtual void device_start();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
// device_rtc_interface overrides
virtual void rtc_set_time(int year, int month, int day, int day_of_week, int hour, int minute, int second);
virtual bool rtc_is_year_2000_compliant() { return false; }
private:
static const device_timer_id TIMER_CLOCK = 0;
inline int read_counter(int counter);
inline void write_counter(int counter, int value);
inline void advance_seconds();
inline void advance_minutes();
UINT8 m_reg[13]; // registers
int m_hold; // counter hold
int m_address; // address
int m_read;
int m_write;
int m_cs;
// timers
emu_timer *m_clock_timer;
const msm5832_device_config &m_config;
};
// device type definition
extern const device_type MSM5832;
#endif
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