// 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 static devcb_base &set_d0_handler(device_t &device, _Object object) { return downcast(device).m_d0_handler.set_callback(object); } template static devcb_base &set_d1_handler(device_t &device, _Object object) { return downcast(device).m_d1_handler.set_callback(object); } template static devcb_base &set_d2_handler(device_t &device, _Object object) { return downcast(device).m_d2_handler.set_callback(object); } template static devcb_base &set_d3_handler(device_t &device, _Object object) { return downcast(device).m_d3_handler.set_callback(object); } template static devcb_base &set_busy_handler(device_t &device, _Object object) { return downcast(device).m_busy_handler.set_callback(object); } static void set_year0(device_t &device, int year0) { downcast(device).m_year0 = year0; } static void set_default_24h(device_t &device, bool default_24h) { downcast(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