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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
National Semiconductor DS75160A IEEE-488 GPIB Transceiver emulation
**********************************************************************
_____ _____
TE 1 |* \_/ | 20 Vcc
D1 2 | | 19 D1
D2 3 | | 18 D2
D3 4 | | 17 D3
D4 5 | DS75160A | 16 D4
D5 6 | | 15 D5
D6 7 | | 14 D6
D7 8 | | 13 D7
D8 8 | | 12 D8
GND 10 |_____________| 11 PE
**********************************************************************/
#ifndef MAME_MACHINE_DS75160A_H
#define MAME_MACHINE_DS75160A_H
#pragma once
///*************************************************************************
// TYPE DEFINITIONS
///*************************************************************************
// ======================> ds75160a_device
class ds75160a_device : public device_t
{
public:
// construction/destruction
ds75160a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto read_callback() { return m_read.bind(); }
auto write_callback() { return m_write.bind(); }
uint8_t read();
void write(uint8_t data);
void te_w(int state);
void pe_w(int state);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
private:
devcb_read8 m_read;
devcb_write8 m_write;
uint8_t m_data;
int m_te;
int m_pe;
};
// device type definition
DECLARE_DEVICE_TYPE(DS75160A, ds75160a_device)
#endif // MAME_MACHINE_DS75160A_H
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