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Diffstat (limited to 'trunk/src/emu/machine/msm5832.h')
-rw-r--r-- | trunk/src/emu/machine/msm5832.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/trunk/src/emu/machine/msm5832.h b/trunk/src/emu/machine/msm5832.h new file mode 100644 index 00000000000..fb52a81a37a --- /dev/null +++ b/trunk/src/emu/machine/msm5832.h @@ -0,0 +1,100 @@ +/********************************************************************** + + OKI MSM5832 Real Time Clock/Calendar emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +********************************************************************** + _____ _____ + Vdd 1 |* \_/ | 18 HOLD + WRITE 2 | | 17 _XT + READ 3 | | 16 XT + A0 4 | | 15 +- 30 ADJ + A1 5 | MSM5832 | 14 TEST + A2 6 | | 13 GND + A3 7 | | 12 D3 + CS 8 | | 11 D2 + D0 9 |_____________| 10 D1 + +**********************************************************************/ + +#pragma once + +#ifndef __MSM5832__ +#define __MSM5832__ + +#include "emu.h" + + + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_MSM5832_ADD(_tag, _clock) \ + MCFG_DEVICE_ADD(_tag, MSM5832, _clock) + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> msm5832_device + +class msm5832_device : public device_t, + public device_rtc_interface +{ +public: + // construction/destruction + msm5832_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + DECLARE_READ8_MEMBER( data_r ); + DECLARE_WRITE8_MEMBER( data_w ); + + void address_w(UINT8 data); + + DECLARE_WRITE_LINE_MEMBER( adj_w ); + DECLARE_WRITE_LINE_MEMBER( test_w ); + DECLARE_WRITE_LINE_MEMBER( hold_w ); + + DECLARE_WRITE_LINE_MEMBER( read_w ); + DECLARE_WRITE_LINE_MEMBER( write_w ); + DECLARE_WRITE_LINE_MEMBER( cs_w ); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + + // 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); + +private: + static const device_timer_id TIMER_CLOCK = 0; + + inline int read_counter(int counter); + inline void write_counter(int counter, int value); + + UINT8 m_reg[13]; // registers + + int m_hold; // counter hold + int m_address; // address + + int m_read; + int m_write; + int m_cs; + + // timers + emu_timer *m_clock_timer; +}; + + +// device type definition +extern const device_type MSM5832; + + + +#endif |