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// license:BSD-3-Clause
// copyright-holders:Angelo Salese
/***************************************************************************
SH7604 BUS Controller
***************************************************************************/
#ifndef MAME_CPU_SH_SH7604_BUS_H
#define MAME_CPU_SH_SH7604_BUS_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> sh7604_bus_device
class sh7604_bus_device : public device_t
{
public:
// construction/destruction
sh7604_bus_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// I/O operations
void bus_regs(address_map &map) ATTR_COLD;
void write(address_space &space, offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
uint32_t read(address_space &space, offs_t offset);
uint16_t bus_control_1_r();
void bus_control_1_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
uint16_t bus_control_2_r();
void bus_control_2_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
uint16_t wait_control_r();
void wait_control_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
uint16_t memory_control_r();
void memory_control_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
uint16_t refresh_timer_status_r();
void refresh_timer_control_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
uint16_t refresh_timer_counter_r();
void refresh_timer_counter_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
uint16_t refresh_timer_constant_r();
void refresh_timer_constant_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);
protected:
// device-level overrides
//virtual void device_validity_check(validity_checker &valid) const;
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
private:
bool m_is_slave;
const address_space_config m_space_config;
uint16_t m_bcr1;
uint16_t m_bcr2;
uint16_t m_wcr;
uint16_t m_mcr;
uint16_t m_rtcsr;
uint16_t m_rtcor;
};
// device type definition
DECLARE_DEVICE_TYPE(SH7604_BUS, sh7604_bus_device)
#endif // MAME_CPU_SH_SH7604_BUS_H
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