// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Intel 8355 - 16,384-Bit ROM with I/O emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. ********************************************************************** _____ _____ _CE1 1 |* \_/ | 40 Vcc CE2 2 | | 39 PB7 CLK 3 | | 38 PB6 RESET 4 | | 37 PB5 N.C. 5 | | 36 PB4 READY 6 | | 35 PB3 IO/_M 7 | | 34 PB2 _IOR 8 | | 33 PB1 _RD 9 | | 32 PB0 _IOW 10 | 8355 | 31 PA7 ALE 11 | 8355-2 | 30 PA6 AD0 12 | | 29 PA5 AD1 13 | | 28 PA4 AD2 14 | | 27 PA3 AD3 15 | | 26 PA2 AD4 16 | | 25 PA1 AD5 17 | | 24 PA0 AD6 18 | | 23 A10 AD7 19 | | 22 A9 Vss 20 |_____________| 21 A8 **********************************************************************/ #pragma once #ifndef __I8355__ #define __I8355__ #include "emu.h" ///************************************************************************* // MACROS / CONSTANTS ///************************************************************************* ///************************************************************************* // INTERFACE CONFIGURATION MACROS ///************************************************************************* #define MCFG_I8355_IN_PA_CB(_devcb) \ devcb = &i8355_device::set_in_pa_callback(*device, DEVCB_##_devcb); #define MCFG_I8355_OUT_PA_CB(_devcb) \ devcb = &i8355_device::set_out_pa_callback(*device, DEVCB_##_devcb); #define MCFG_I8355_IN_PB_CB(_devcb) \ devcb = &i8355_device::set_in_pb_callback(*device, DEVCB_##_devcb); #define MCFG_I8355_OUT_PB_CB(_devcb) \ devcb = &i8355_device::set_out_pb_callback(*device, DEVCB_##_devcb); ///************************************************************************* // TYPE DEFINITIONS ///************************************************************************* // ======================> i8355_device class i8355_device : public device_t, public device_memory_interface { public: // construction/destruction i8355_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); template static devcb_base &set_in_pa_callback(device_t &device, _Object object) { return downcast(device).m_in_pa_cb.set_callback(object); } template static devcb_base &set_out_pa_callback(device_t &device, _Object object) { return downcast(device).m_out_pa_cb.set_callback(object); } template static devcb_base &set_in_pb_callback(device_t &device, _Object object) { return downcast(device).m_in_pb_cb.set_callback(object); } template static devcb_base &set_out_pb_callback(device_t &device, _Object object) { return downcast(device).m_out_pb_cb.set_callback(object); } DECLARE_READ8_MEMBER( io_r ); DECLARE_WRITE8_MEMBER( io_w ); DECLARE_READ8_MEMBER( memory_r ); DECLARE_WRITE8_MEMBER( memory_w ); protected: // device-level overrides virtual void device_start(); virtual void device_reset(); // device_memory_interface overrides virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const; inline UINT8 read_port(int port); inline void write_port(int port, UINT8 data); private: devcb_read8 m_in_pa_cb; devcb_write8 m_out_pa_cb; devcb_read8 m_in_pb_cb; devcb_write8 m_out_pb_cb; // registers UINT8 m_output[2]; // output latches UINT8 m_ddr[2]; // DDR latches const address_space_config m_space_config; }; // device type definition extern const device_type I8355; #endif