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// license:BSD-3-Clause
// copyright-holders:Angelo Salese
/***************************************************************************
Template for skeleton device
***************************************************************************/
#pragma once
#ifndef __M6M80011APDEV_H__
#define __M6M80011APDEV_H__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
/* TODO: frequency */
#define MCFG_M6M80011AP_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, M6M80011AP, XTAL_32_768kHz)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
enum eeprom_cmd_t
{
EEPROM_GET_CMD = 0,
EEPROM_READ,
EEPROM_WRITE,
EEPROM_WRITE_ENABLE,
EEPROM_WRITE_DISABLE,
EEPROM_STATUS_OUTPUT
};
// ======================> m6m80011ap_device
class m6m80011ap_device : public device_t,
public device_nvram_interface
{
public:
// construction/destruction
m6m80011ap_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 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:
UINT8 m_latch;
UINT8 m_reset_line;
UINT8 m_cmd_stream_pos;
UINT32 m_current_cmd;
UINT8 m_read_latch;
UINT8 m_current_addr;
UINT8 m_eeprom_we;
eeprom_cmd_t m_eeprom_state;
UINT16 m_eeprom_data[0x80];
};
// device type definition
extern const device_type M6M80011AP;
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
#endif
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