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// license:BSD-3-Clause
// copyright-holders:Angelo Salese
/***************************************************************************
SH7604 SCI Controller
***************************************************************************/
#ifndef MAME_CPU_SH2_SH7604_SCI_H
#define MAME_CPU_SH2_SH7604_SCI_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> sh7604_sci_device
class sh7604_sci_device : public device_t
{
public:
// construction/destruction
sh7604_sci_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// I/O operations
void sci_regs(address_map &map);
void write(address_space &space, offs_t offset, uint8_t data);
uint8_t read(address_space &space, offs_t offset);
uint8_t serial_mode_r();
void serial_mode_w(uint8_t data);
uint8_t bitrate_r();
void bitrate_w(uint8_t data);
uint8_t serial_control_r();
void serial_control_w(uint8_t data);
uint8_t transmit_data_r();
void transmit_data_w(uint8_t data);
uint8_t serial_status_r();
void serial_ack_w(uint8_t data);
uint8_t receive_data_r();
protected:
enum {
STATUS_MPBT = 1 << 0,
STATUS_MPB = 1 << 1,
STATUS_TEND = 1 << 2,
STATUS_PER = 1 << 3,
STATUS_FER = 1 << 4,
STATUS_ORER = 1 << 5,
STATUS_RDRF = 1 << 6,
STATUS_TDRE = 1 << 7
};
// device-level overrides
// virtual void device_validity_check(validity_checker &valid) const;
virtual void device_start() override;
virtual void device_reset() override;
private:
const address_space_config m_space_config;
uint8_t m_smr;
uint8_t m_scr;
uint8_t m_ssr;
uint8_t m_brr;
};
// device type definition
DECLARE_DEVICE_TYPE(SH7604_SCI, sh7604_sci_device)
#endif // MAME_CPU_SH2_SH7604_SCI_H
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