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// license:BSD-3-Clause
// copyright-holders:Angelo Salese
#ifndef MAME_MACHINE_M6M80011AP_H
#define MAME_MACHINE_M6M80011AP_H
#pragma once
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
/* TODO: frequency */
#define MCFG_M6M80011AP_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, M6M80011AP, XTAL(32'768))
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> m6m80011ap_device
class m6m80011ap_device : public device_t,
public device_nvram_interface
{
public:
// construction/destruction
m6m80011ap_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// I/O operations
DECLARE_READ_LINE_MEMBER( read_bit );
DECLARE_READ_LINE_MEMBER( ready_line );
DECLARE_WRITE_LINE_MEMBER( set_cs_line );
DECLARE_WRITE_LINE_MEMBER( set_clock_line );
DECLARE_WRITE_LINE_MEMBER( write_bit );
protected:
// device-level overrides
virtual void device_validity_check(validity_checker &valid) const override;
virtual void device_start() override;
virtual void device_reset() override;
virtual void nvram_default() override;
virtual void nvram_read(emu_file &file) override;
virtual void nvram_write(emu_file &file) override;
private:
enum eeprom_cmd_t
{
EEPROM_GET_CMD = 0,
EEPROM_READ,
EEPROM_WRITE,
EEPROM_WRITE_ENABLE,
EEPROM_WRITE_DISABLE,
EEPROM_STATUS_OUTPUT
};
uint8_t m_latch;
uint8_t m_reset_line;
uint8_t m_cmd_stream_pos;
uint32_t m_current_cmd;
uint8_t m_read_latch;
uint8_t m_current_addr;
uint8_t m_eeprom_we;
eeprom_cmd_t m_eeprom_state;
uint16_t m_eeprom_data[0x80];
};
// device type definition
DECLARE_DEVICE_TYPE(M6M80011AP, m6m80011ap_device)
#endif // MAME_MACHINE_M6M80011AP_H
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