diff options
Diffstat (limited to 'src/mame/drivers/qvt201.cpp')
-rw-r--r-- | src/mame/drivers/qvt201.cpp | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/src/mame/drivers/qvt201.cpp b/src/mame/drivers/qvt201.cpp index d1ef3685802..c200b35e5ff 100644 --- a/src/mame/drivers/qvt201.cpp +++ b/src/mame/drivers/qvt201.cpp @@ -8,6 +8,7 @@ Skeleton driver for Qume QVT-201 & QVT-202 display terminals. #include "emu.h" #include "cpu/z80/z80.h" +#include "bus/rs232/rs232.h" #include "machine/input_merger.h" #include "machine/mc68681.h" #include "machine/nvram.h" @@ -20,6 +21,7 @@ public: qvt201_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") + , m_eia(*this, "eia") , m_screen(*this, "screen") , m_p_chargen(*this, "chargen") , m_dataram(*this, "dataram") @@ -33,10 +35,12 @@ private: DECLARE_WRITE8_MEMBER(offset_w); DECLARE_WRITE8_MEMBER(keyboard_w); DECLARE_READ8_MEMBER(keyboard_r); + DECLARE_WRITE8_MEMBER(duart_out_w); void mem_map(address_map &map); required_device<cpu_device> m_maincpu; + required_device<rs232_port_device> m_eia; required_device<screen_device> m_screen; required_region_ptr<u8> m_p_chargen; required_shared_ptr<u8> m_dataram; @@ -61,6 +65,21 @@ READ8_MEMBER(qvt201_state::keyboard_r) return 1; } +WRITE8_MEMBER(qvt201_state::duart_out_w) +{ + // OP0 = RTS (EIA pin 4) + // OP1 = DTR (EIA pin 20) + // OP2 not used? + // OP3 = 132/_80 + // OP4 = SRV + // OP5 = BLOCK/_UL + // OP6 = preset NMI flipflop + // OP7 = _DATA/TALK (EIA pin 14) + + m_eia->write_rts(BIT(data, 0)); + m_eia->write_dtr(BIT(data, 1)); +} + void qvt201_state::mem_map(address_map &map) { map(0x0000, 0x7fff).rom().region("maincpu", 0); @@ -78,23 +97,33 @@ static INPUT_PORTS_START( qvt201 ) INPUT_PORTS_END MACHINE_CONFIG_START(qvt201_state::qvt201) - MCFG_DEVICE_ADD("maincpu", Z80, XTAL(3'686'400)) + MCFG_DEVICE_ADD("maincpu", Z80, 3.6864_MHz_XTAL) MCFG_DEVICE_PROGRAM_MAP(mem_map) // IORQ is not used at all MCFG_INPUT_MERGER_ANY_HIGH("mainint") // open collector MCFG_INPUT_MERGER_OUTPUT_HANDLER(INPUTLINE("maincpu", 0)) - MCFG_DEVICE_ADD("duart", SCN2681, XTAL(3'686'400)) // XTAL not directly connected + MCFG_DEVICE_ADD("duart", SCN2681, 3.6864_MHz_XTAL) // XTAL not directly connected MCFG_MC68681_IRQ_CALLBACK(WRITELINE("mainint", input_merger_device, in_w<1>)) + MCFG_MC68681_A_TX_CALLBACK(WRITELINE("eia", rs232_port_device, write_txd)) + MCFG_MC68681_B_TX_CALLBACK(WRITELINE("aux", rs232_port_device, write_txd)) + MCFG_MC68681_OUTPORT_CALLBACK(WRITE8(*this, qvt201_state, duart_out_w)) + + MCFG_DEVICE_ADD("eia", RS232_PORT, default_rs232_devices, nullptr) + MCFG_RS232_RXD_HANDLER(WRITELINE("duart", scn2681_device, rx_a_w)) + + MCFG_DEVICE_ADD("aux", RS232_PORT, default_rs232_devices, nullptr) + MCFG_RS232_RXD_HANDLER(WRITELINE("duart", scn2681_device, rx_b_w)) + MCFG_RS232_DSR_HANDLER(WRITELINE("duart", scn2681_device, ip4_w)) - MCFG_NVRAM_ADD_0FILL("nvram") + MCFG_NVRAM_ADD_0FILL("nvram") // TC5516APL-2 or uPD446C-2 + battery MCFG_SCREEN_ADD("screen", RASTER) - MCFG_SCREEN_RAW_PARAMS(XTAL(48'654'000) / 3, 102 * 10, 0, 80 * 10, 265, 0, 250) - //MCFG_SCREEN_RAW_PARAMS(XTAL(48'654'000) / 2, 170 * 9, 0, 132 * 9, 265, 0, 250) + MCFG_SCREEN_RAW_PARAMS(48.654_MHz_XTAL / 3, 102 * 10, 0, 80 * 10, 265, 0, 250) + //MCFG_SCREEN_RAW_PARAMS(48.654_MHz_XTAL / 2, 170 * 9, 0, 132 * 9, 265, 0, 250) MCFG_SCREEN_UPDATE_DEVICE("crtc", scn2672_device, screen_update) - MCFG_DEVICE_ADD("crtc", SCN2672, XTAL(48'654'000) / 30) + MCFG_DEVICE_ADD("crtc", SCN2672, 48.654_MHz_XTAL / 30) MCFG_SCN2672_CHARACTER_WIDTH(10) // 9 in 132-column mode MCFG_SCN2672_INTR_CALLBACK(WRITELINE("mainint", input_merger_device, in_w<0>)) MCFG_VIDEO_SET_SCREEN("screen") |