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// license:BSD-3-Clause
// copyright-holders:Luca Elia
#ifndef TMP68301_H
#define TMP68301_H
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
/* TODO: serial ports, frequency & hook it up with m68k */
#define MCFG_TMP68301_IN_PARALLEL_CB(_devcb) \
devcb = &tmp68301_device::set_in_parallel_callback(*device, DEVCB_##_devcb);
#define MCFG_TMP68301_OUT_PARALLEL_CB(_devcb) \
devcb = &tmp68301_device::set_out_parallel_callback(*device, DEVCB_##_devcb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class tmp68301_device : public device_t,
public device_memory_interface
{
public:
tmp68301_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~tmp68301_device() {}
template<class _Object> static devcb_base &set_in_parallel_callback(device_t &device, _Object object) { return downcast<tmp68301_device &>(device).m_in_parallel_cb.set_callback(object); }
template<class _Object> static devcb_base &set_out_parallel_callback(device_t &device, _Object object) { return downcast<tmp68301_device &>(device).m_out_parallel_cb.set_callback(object); }
// Hardware Registers
DECLARE_READ16_MEMBER( regs_r );
DECLARE_WRITE16_MEMBER( regs_w );
// Interrupts
void external_interrupt_0();
void external_interrupt_1();
void external_interrupt_2();
DECLARE_READ16_MEMBER(imr_r);
DECLARE_WRITE16_MEMBER(imr_w);
DECLARE_READ16_MEMBER(iisr_r);
DECLARE_WRITE16_MEMBER(iisr_w);
DECLARE_READ16_MEMBER(scr_r);
DECLARE_WRITE16_MEMBER(scr_w);
DECLARE_READ16_MEMBER(pdr_r);
DECLARE_WRITE16_MEMBER(pdr_w);
DECLARE_READ16_MEMBER(pdir_r);
DECLARE_WRITE16_MEMBER(pdir_w);
IRQ_CALLBACK_MEMBER(irq_callback);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const override;
private:
devcb_read16 m_in_parallel_cb;
devcb_write16 m_out_parallel_cb;
// internal state
UINT16 m_regs[0x400];
UINT8 m_IE[3]; // 3 External Interrupt Lines
emu_timer *m_tmp68301_timer[3]; // 3 Timers
UINT16 m_irq_vector[8];
TIMER_CALLBACK_MEMBER( timer_callback );
void update_timer( int i );
void update_irq_state();
UINT16 m_imr;
UINT16 m_iisr;
UINT16 m_scr;
UINT16 m_pdir;
UINT16 m_pdr;
inline UINT16 read_word(offs_t address);
inline void write_word(offs_t address, UINT16 data);
const address_space_config m_space_config;
};
extern const device_type TMP68301;
#endif
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