// 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; 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