// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Ricoh RP5C15 Real Time Clock emulation ********************************************************************** _____ _____ _CS 1 |* \_/ | 18 Vcc CS 2 | | 17 OSCOUT CLKOUT 3 | | 16 OSCIN A0 4 | RP5C15 | 15 _ALARM A1 5 | RF5C15 | 14 D3 A2 6 | RJ5C15 | 13 D2 A3 7 | | 12 D1 _RD 8 | | 11 D0 GND 9 |_____________| 10 _WR **********************************************************************/ #ifndef MAME_MACHINE_RP5C15_H #define MAME_MACHINE_RP5C15_H #pragma once #include "dirtc.h" class rp5c15_device : public device_t, public device_rtc_interface { public: // construction/destruction rp5c15_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); auto alarm() { return m_out_alarm_cb.bind(); } auto clkout() { return m_out_clkout_cb.bind(); } void set_year_offset(int year) { m_year_offset = year; } uint8_t read(offs_t offset); void write(offs_t offset, uint8_t data); protected: // device-level overrides virtual void device_start() override ATTR_COLD; // device_rtc_interface overrides virtual bool rtc_feature_leap_year() const override { return true; } 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(advance_1hz_clock); TIMER_CALLBACK_MEMBER(advance_16hz_clock); TIMER_CALLBACK_MEMBER(advance_output_clock); private: inline void set_alarm_line(); inline int read_counter(int counter); inline void write_counter(int counter, int value); inline void check_alarm(); devcb_write_line m_out_alarm_cb; devcb_write_line m_out_clkout_cb; uint8_t m_reg[2][13]; // clock registers uint8_t m_ram[13]; // RAM uint8_t m_mode; // mode register uint8_t m_reset; // reset register int m_alarm; // alarm output int m_alarm_on; // alarm condition int m_1hz; // 1 Hz condition int m_16hz; // 16 Hz condition int m_clkout; // clock output int m_year_offset = 0; // timers emu_timer *m_clock_timer; emu_timer *m_16hz_timer; emu_timer *m_clkout_timer; }; // device type definition DECLARE_DEVICE_TYPE(RP5C15, rp5c15_device) #endif // MAME_MACHINE_RP5C15_H