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/**********************************************************************
General Instruments AY-5-3600 Keyboard Encoder emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
_____ _____
1 |* \_/ | 40 X0
2 | | 39 X1
3 | | 38 X2
4 | | 37 X3
5 | | 36 X4
B9 6 | | 35 X5
B8 7 | | 34 X6
B7 8 | | 33 X7
B6 9 | | 32 X8
B5 10 | AY-5-3600 | 31 DELAY NODE
B4 11 | | 30 Vcc
B3 12 | | 29 SHIFT
B2 13 | | 28 CONTROL
B1 14 | | 27 Vgg
Vdd 15 | | 26 Y9
DATA READY 16 | | 25 Y8
Y0 17 | | 24 Y7
Y1 18 | | 23 Y6
Y2 19 | | 22 Y5
Y3 20 |_____________| 21 Y4
_____ _____
Vcc 1 |* \_/ | 40 Vss
B9 2 | | 39 Vgg
B8 3 | | 38 _STCL?
B7 4 | | 37 _MCLR
TEST 5 | | 36 OSC
B6 6 | | 35 CLK OUT
B5 7 | | 34 X7
B4 8 | | 33 X6
B3 9 | | 32 X5
B2 10 | AY-5-3600 | 31 X4
B1 11 | PRO 002 | 30 X3
X8 12 | | 29 X2
AKO 13 | | 28 X1
CTRL 14 | | 27 X0
SHIFT 15 | | 26 Y9
DATA READY 16 | | 25 Y8
Y0 17 | | 24 Y7
Y1 18 | | 23 Y6
Y2 19 | | 22 Y5
Y3 20 |_____________| 21 Y4
**********************************************************************/
#pragma once
#ifndef __AY3600__
#define __AY3600__
#include "emu.h"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_AY3600_ADD(_tag, _clock, _config) \
MCFG_DEVICE_ADD(_tag, AY3600, _clock) \
MCFG_DEVICE_CONFIG(_config)
#define AY3600_INTERFACE(name) \
const ay3600_interface (name) =
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> ay3600_interface
struct ay3600_interface
{
devcb_read16 m_in_x0_cb;
devcb_read16 m_in_x1_cb;
devcb_read16 m_in_x2_cb;
devcb_read16 m_in_x3_cb;
devcb_read16 m_in_x4_cb;
devcb_read16 m_in_x5_cb;
devcb_read16 m_in_x6_cb;
devcb_read16 m_in_x7_cb;
devcb_read16 m_in_x8_cb;
devcb_read_line m_in_shift_cb;
devcb_read_line m_in_control_cb;
devcb_write_line m_out_data_ready_cb;
devcb_write_line m_out_ako_cb;
};
// ======================> ay3600_device
class ay3600_device : public device_t,
public ay3600_interface
{
public:
// construction/destruction
ay3600_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
public:
UINT16 b_r();
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void device_config_complete();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
private:
devcb_resolved_read16 m_in_x_func[9];
devcb_resolved_read_line m_in_shift_func;
devcb_resolved_read_line m_in_control_func;
devcb_resolved_write_line m_out_data_ready_func;
devcb_resolved_write_line m_out_ako_func;
int m_b; // output buffer
int m_ako; // any key down
// timers
emu_timer *m_scan_timer; // keyboard scan timer
};
// device type definition
extern const device_type AY3600;
#endif
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