// license:BSD-3-Clause // copyright-holders:AJR /*********************************************************************************************************************************** Skeleton driver for Microterm Model 5510 terminal. ************************************************************************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "machine/eepromser.h" #include "machine/mc68681.h" #include "screen.h" namespace { class mt5510_state : public driver_device { public: mt5510_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_rombank(*this, "rombank") { } void mt5510(machine_config &config); protected: virtual void machine_start() override; virtual void machine_reset() override; private: u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); void bank_w(u8 data); void mem_map(address_map &map); void io_map(address_map &map); required_device m_maincpu; required_memory_bank m_rombank; }; void mt5510_state::machine_start() { m_rombank->configure_entries(0, 4, memregion("maincpu")->base() + 0x8000, 0x2000); } void mt5510_state::machine_reset() { m_rombank->set_entry(0); } u32 mt5510_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { return 0; } void mt5510_state::bank_w(u8 data) { m_rombank->set_entry(BIT(data, 2, 2)); } void mt5510_state::mem_map(address_map &map) { map(0x0000, 0x7fff).rom().region("maincpu", 0).nopw(); map(0x8000, 0x9fff).bankr("rombank"); map(0xa000, 0xbfff).ram(); map(0xc000, 0xdfff).ram().share("charram"); map(0xe000, 0xffff).ram().share("attrram"); } void mt5510_state::io_map(address_map &map) { map.global_mask(0xff); map(0x60, 0x6f).rw("duart", FUNC(scn2681_device::read), FUNC(scn2681_device::write)); map(0x71, 0x71).w(FUNC(mt5510_state::bank_w)); } static INPUT_PORTS_START(mt5510) INPUT_PORTS_END void mt5510_state::mt5510(machine_config &config) { Z80(config, m_maincpu, 6_MHz_XTAL); m_maincpu->set_addrmap(AS_PROGRAM, &mt5510_state::mem_map); m_maincpu->set_addrmap(AS_IO, &mt5510_state::io_map); scn2681_device &duart(SCN2681(config, "duart", 3.6864_MHz_XTAL)); duart.irq_cb().set_inputline(m_maincpu, 0); duart.outport_cb().set("eeprom1", FUNC(eeprom_serial_93cxx_device::di_write)).bit(6); duart.outport_cb().append("eeprom2", FUNC(eeprom_serial_93cxx_device::di_write)).bit(5); duart.outport_cb().append("eeprom1", FUNC(eeprom_serial_93cxx_device::cs_write)).bit(4); duart.outport_cb().append("eeprom2", FUNC(eeprom_serial_93cxx_device::cs_write)).bit(4); duart.outport_cb().append("eeprom1", FUNC(eeprom_serial_93cxx_device::clk_write)).bit(3); duart.outport_cb().append("eeprom2", FUNC(eeprom_serial_93cxx_device::clk_write)).bit(3); EEPROM_93C46_16BIT(config, "eeprom1").do_callback().set("duart", FUNC(scn2681_device::ip6_w)); EEPROM_93C46_16BIT(config, "eeprom2").do_callback().set("duart", FUNC(scn2681_device::ip5_w)); screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); screen.set_raw(45.8304_MHz_XTAL / 2, 1120, 0, 960, 341, 0, 300); // wild guess at resolution screen.set_screen_update(FUNC(mt5510_state::screen_update)); } /************************************************************************************************************** Micro-Term 5510. Chips: Z80, SCN2681, S8842C4/SCX6244UNT, 4x CXK5864BP-70L, 2x NMC9346N Crystals: 6.000, 3.68640, 45.8304 ***************************************************************************************************************/ ROM_START( mt5510 ) ROM_REGION(0x10000, "maincpu", 0) ROM_LOAD( "2500_m.p._r1.9.u11", 0x00000, 0x10000, CRC(71f19a53) SHA1(91df26d46a93359cd033d7137f1676bcfa58223b) ) ROM_END } // anonymous namespace COMP(1988, mt5510, 0, 0, mt5510, mt5510, mt5510_state, empty_init, "Microterm", "Microterm 5510", MACHINE_IS_SKELETON)