// license:BSD-3-Clause // copyright-holders:Angelo Salese /*************************************************************************** Seiko/Epson S-3520CF ***************************************************************************/ #ifndef MAME_MACHINE_S3520CF_H #define MAME_MACHINE_S3520CF_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> s3520cf_device class s3520cf_device : public device_t, public device_nvram_interface { public: // construction/destruction s3520cf_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 32'768); // I/O operations DECLARE_READ_LINE_MEMBER( read_bit ); DECLARE_WRITE_LINE_MEMBER( set_dir_line ); DECLARE_WRITE_LINE_MEMBER( set_cs_line ); DECLARE_WRITE_LINE_MEMBER( set_clock_line ); DECLARE_WRITE_LINE_MEMBER( write_bit ); TIMER_CALLBACK_MEMBER(timer_callback); protected: s3520cf_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock); struct rtc_regs_t { u8 sec, min, hour, day, wday, month, year; }; // device-level overrides virtual void device_validity_check(validity_checker &valid) const override; virtual void device_start() override; virtual void device_reset() 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; optional_memory_region m_region; inline u8 rtc_read(u8 offset); inline void rtc_write(u8 offset, u8 data); void check_overflow(); int m_dir; int m_latch; int m_reset_line; int m_read_latch; u8 m_bitstream, m_stream_pos; u8 m_mode, m_sysr, m_cntrl1, m_cntrl2; rtc_regs_t m_rtc; u8 m_nvdata[15]; emu_timer *m_timer; }; /*************************************************************************** Epson RTC-4553 ***************************************************************************/ class rtc4553_device : public s3520cf_device { public: rtc4553_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 32'768); }; // device type definition DECLARE_DEVICE_TYPE(S3520CF, s3520cf_device) DECLARE_DEVICE_TYPE(RTC4553, rtc4553_device) #endif // MAME_MACHINE_S3520CF_H