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/***************************************************************************
Fujistu MB3773
Power Supply Monitor with Watch Dog Timer (i.e. Reset IC)
***************************************************************************/
#pragma once
#ifndef __MB3773_H__
#define __MB3773_H__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_MB3773_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, MB3773, 0)
// ======================> mb3773_device
class mb3773_device :
public device_t
{
public:
// construction/destruction
mb3773_device( const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock );
// I/O operations
void set_ck( int state );
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_validity_check(validity_checker &valid) const;
virtual void device_start();
virtual void device_reset();
// internal helpers
static TIMER_CALLBACK( watchdog_timeout );
void reset_timer();
// internal state
emu_timer *m_watchdog_timer;
int m_ck;
};
// device type definition
extern const device_type MB3773;
//**************************************************************************
// READ/WRITE HANDLERS
//**************************************************************************
WRITE_LINE_DEVICE_HANDLER( mb3773_set_ck );
#endif
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