// license:BSD-3-Clause // copyright-holders:Sandro Ronco /********************************************************************** Hitachi HD64610 Real Time Clock ********************************************************************** _____ _____ GND 1 |* \_/ | 24 Vcc H-Start/Stop 2 | | 23 OSC2 _IRQ 3 | | 22 OSC1 1Hz 4 | HD64610 | 21 GND A3 5 | | 20 _WE A2 6 | | 19 _OE A1 7 | | 18 _CS A0 8 | | 17 I/O8 I/O1 9 | | 16 I/O7 I/O2 10 | | 15 I/O6 I/O3 11 | | 14 I/O5 GND 12 |_____________| 13 I/O4 **********************************************************************/ #pragma once #ifndef __HD64610__ #define __HD64610__ #include "dirtc.h" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_HD64610_OUT_IRQ_CB(_devcb) \ devcb = &hd64610_device::set_out_irq_callback(*device, DEVCB_##_devcb); #define MCFG_HD64610_OUT_1HZ_CB(_devcb) \ devcb = &hd64610_device::set_out_1hz_callback(*device, DEVCB_##_devcb); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> hd64610_device class hd64610_device : public device_t, public device_rtc_interface, public device_nvram_interface { public: // construction/destruction hd64610_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); template static devcb_base &set_out_irq_callback(device_t &device, _Object object) { return downcast(device).m_out_irq_cb.set_callback(object); } template static devcb_base &set_out_1hz_callback(device_t &device, _Object object) { return downcast(device).m_out_1hz_cb.set_callback(object); } DECLARE_READ8_MEMBER( read ); DECLARE_WRITE8_MEMBER( write ); // hardware start/stop line DECLARE_WRITE_LINE_MEMBER( h_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; // 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: inline void set_irq_line(); inline uint8_t read_counter(int counter); inline void write_counter(int counter, uint8_t value); inline void check_alarm(); static const device_timer_id TIMER_UPDATE_COUNTER = 0; devcb_write_line m_out_irq_cb; devcb_write_line m_out_1hz_cb; uint8_t m_regs[0x10]; // Internal registers int m_hline_state; // H-Start/Stop line int m_irq_out; // alarm output // timers emu_timer *m_counter_timer; }; // device type definition extern const device_type HD64610; #endif