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author | 2015-09-13 08:41:44 +0200 | |
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committer | 2015-09-13 08:41:44 +0200 | |
commit | f88cefad27a1737c76e09d99c9fb43e173506081 (patch) | |
tree | 2d8167d03579c46e226471747eb4407bd00ed6fa /src/devices/machine/m6m80011ap.h | |
parent | e92ac9e0fa8e99869894bea00589bbb526be30aa (diff) |
Move all devices into separate part of src tree (nw)
Diffstat (limited to 'src/devices/machine/m6m80011ap.h')
-rw-r--r-- | src/devices/machine/m6m80011ap.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/devices/machine/m6m80011ap.h b/src/devices/machine/m6m80011ap.h new file mode 100644 index 00000000000..196617f2339 --- /dev/null +++ b/src/devices/machine/m6m80011ap.h @@ -0,0 +1,91 @@ +// 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, const char *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; + virtual void device_start(); + virtual void device_reset(); + + virtual void nvram_default(); + virtual void nvram_read(emu_file &file); + virtual void nvram_write(emu_file &file); + +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 |