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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
/***************************************************************************
a8sio.h - Atari 8 bit SIO bus interface
1 1
2 4 6 8 0 2
+-----------+
/ o o o o o o \
/ o o o o o o o \
+-----------------+
1 3 5 7 9 1 1
1 3
1 - clock in (to computer)
2 - clock out
3 - data in
4 - GND
5 - data out
6 - GND
7 - command (active low)
8 - motor
9 - proceed (active low)
10 - +5V/ready
11 - audio in
12 - +12V (A400/A800)
13 - interrupt (active low)
***************************************************************************/
#ifndef MAME_BUS_A800_A8SIO_H
#define MAME_BUS_A800_A8SIO_H
#pragma once
void a8sio_cards(device_slot_interface &device);
class device_a8sio_card_interface;
class a8sio_device : public device_t, public device_single_card_slot_interface<device_a8sio_card_interface>
{
public:
// construction/destruction
a8sio_device(machine_config const &mconfig, char const *tag, device_t *owner, char const *dflt)
: a8sio_device(mconfig, tag, owner)
{
option_reset();
a8sio_cards(*this);
set_default_option(dflt);
set_fixed(false);
}
a8sio_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock = XTAL());
// inline configuration
auto clock_in() { return m_out_clock_in_cb.bind(); }
auto data_in() { return m_out_data_in_cb.bind(); }
auto audio_in() { return m_out_audio_in_cb.bind(); }
auto proceed() { return m_out_proceed_cb.bind(); }
auto interrupt() { return m_out_interrupt_cb.bind(); }
device_a8sio_card_interface *get_a8sio_card();
DECLARE_WRITE_LINE_MEMBER( clock_in_w ); // pin 1
DECLARE_WRITE_LINE_MEMBER( clock_out_w ); // pin 2
DECLARE_WRITE_LINE_MEMBER( data_in_w ); // pin 3
DECLARE_WRITE_LINE_MEMBER( data_out_w ); // pin 5
DECLARE_WRITE_LINE_MEMBER( command_w ); // pin 7
DECLARE_WRITE_LINE_MEMBER( motor_w ); // pin 8
DECLARE_WRITE_LINE_MEMBER( proceed_w ); // pin 9
void audio_in_w(uint8_t data); // pin 11
DECLARE_WRITE_LINE_MEMBER( interrupt_w ); // pin 13
protected:
a8sio_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock);
// device-level overrides
virtual void device_resolve_objects() override;
virtual void device_start() override;
virtual void device_reset() override;
devcb_write_line m_out_clock_in_cb; // pin 1
devcb_write_line m_out_data_in_cb; // pin 3
devcb_write_line m_out_proceed_cb; // pin 9
devcb_write8 m_out_audio_in_cb; // pin 11
devcb_write_line m_out_interrupt_cb; // pin 13
device_a8sio_card_interface *m_device;
};
// device type definition
DECLARE_DEVICE_TYPE(A8SIO, a8sio_device)
class device_a8sio_card_interface : public device_interface
{
friend class a8sio_device;
public:
// construction/destruction
virtual ~device_a8sio_card_interface();
void set_a8sio_device(a8sio_device *sio);
virtual DECLARE_WRITE_LINE_MEMBER( clock_out_w );
virtual DECLARE_WRITE_LINE_MEMBER( data_out_w );
virtual DECLARE_WRITE_LINE_MEMBER( command_w );
virtual DECLARE_WRITE_LINE_MEMBER( motor_w );
virtual DECLARE_WRITE_LINE_MEMBER( ready_w );
public:
device_a8sio_card_interface(const machine_config &mconfig, device_t &device);
a8sio_device *m_a8sio;
};
#endif // MAME_BUS_A800_A8SIO_H
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