MIE

NAOMI and NAOMI 2 MIE-JVS bridge Maple device More...

Topics
	Analog Calibration
	JVS wheel and pedal calibration
	Callbacks
	Automatic input notification callbacks
	Coin Control
	JVS coin slot meter access and commands
	Coin Status Flags
	COININP status bits in the upper word
	Controller Mapping
	JVS to Dreamcast controller translation
	Device Access
	MIE board identification, EEPROM, and firmware init
	General Purpose Output
	JVS general purpose output (lamps, solenoids)
	Input Masks
	Bit masks for mie_jvs_callback() and native switch fields
	JVS Inputs
	Native JVS input state structures and masks
	Limits
	JVS channel and buffer size constants
	Port A Mode
	NAOMI port A wiring detection

Files
file	mie.h
	Definitions for the NAOMI MIE-JVS bridge Maple device.

Data Structures
struct	mie_jvs_coin_slot_t
	Parsed JVS coin slot state. More...
struct	mie_jvs_player_sw_t
	One player JVS switch bank. More...
struct	mie_jvs_panel_dip_t
	Panel DIP switch bank. More...
struct	mie_jvs_system_t
	JVS SWINP system switch byte. More...
struct	mie_jvs_panel_t
	Cabinet panel switches. More...
struct	mie_jvs_inputs_t
	Decoded JVS input state. More...
struct	mie_state_t
	MIE device status. More...
struct	mie_analog_axis_calib_t
	Per-axis JVS analog calibration data. More...
struct	mie_analog_calib_t
	Wheel and pedal calibration set. More...

Detailed Description

NAOMI and NAOMI 2 MIE-JVS bridge Maple device

The MIE (Maple I/O Emulator) is a Z80-based bridge that connects the Maple bus to a JVS I/O board. It normally occupies Maple port A, unit 0. Player inputs from the JVS board are mapped to a standard Dreamcast controller state structure (cont_state_t), as well as the original native JVS inputs structure (mie_jvs_inputs_t).

Port A can be switched between JVS mode and a regular Dreamcast Maple port. The driver detects which mode is active and either handles JVS input or yields port A to the standard Maple autodetect (controller, VMU, etc.).

Author

Ruslan Rostovtsev