// license:BSD-3-Clause // copyright-holders:AJR /********************************************************************** Keytronic L2207 83-key keyboard This was sold by Keytronic as a generic VT100-lookalike ASCII keyboard. Its normal configuration communicates via 300 baud asynchronous TTL-level serial, but populating a few additional components and using an alternate connector gives it a parallel interface for outputs. The PCB additionally supports a "minimum" interface that eliminates the MCU and provides a raw interface to the capacitive key matrix ASICs (22-950-003 decoder & 22-908-003 detector, as described in U.S. Patent 4,277,780) and LED latch. Keys generating non-ASCII codes: No Scroll B0 0 (keypad) B1 . (keypad) B2 1 (keypad) C0 2 (keypad) C1 3 (keypad) C2 Enter (keypad) C3 4 (keypad) D0 5 (keypad) D1 6 (keypad) D2 , (keypad) D3 Break E0 7 (keypad) E1 8 (keypad) E2 9 (keypad) E3 - (keypad) E4 Ctrl+3 E5 ↑ F1 ↓ F2 ← F3 → F4 PF1 F6 PF2 F7 PF3 F8 PF4 F9 Set-Up FE Several other codes (A0-A5, D4, D6, F0, F5) are assigned to 9 additional switches which are not normally populated. The presently dumped firmware also sends AA in response to the undocumented test command below. List of commands (delivered through serial input): D7 D6 D5 D4 D3 D2 D1 D0 l8 l7 l6 l5 l4 l3 l2 1 Set LED data - - - - - - 1 0 Short beep - - - - - 1 0 0 Long beep - - - - 1 0 0 0 Key click off - - - 1 0 0 0 0 Test? (undocumented) - - - 0 0 0 0 0 Key click on An alternate version of this keyboard, whose solder side is labeled "PCB-251 / KTC A65-02675-051." has differently styled keytops and a different EPROM but is otherwise identical in layout and functionality. **********************************************************************/ #include "emu.h" #include "keytronic_l2207.h" #include "speaker.h" DEFINE_DEVICE_TYPE(KEYTRONIC_L2207, keytronic_l2207_device, "keytronic_l2207", "Keytronic L2207 serial keyboard") keytronic_l2207_device::keytronic_l2207_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : device_t(mconfig, KEYTRONIC_L2207, tag, owner, clock) , m_mcu(*this, "mcu") , m_beeper(*this, "beeper") , m_keys(*this, "KEYS%d", 0U) , m_leds(*this, "kbd_led%d", 1U) , m_all_caps(*this, "all_caps") , m_ser_out_callback(*this) , m_p1_in(0xff) , m_p2_out(0) , m_beeper_latch(false) { } void keytronic_l2207_device::device_resolve_objects() { m_leds.resolve(); m_all_caps.resolve(); m_ser_out_callback.resolve_safe(); } void keytronic_l2207_device::device_start() { save_item(NAME(m_p1_in)); save_item(NAME(m_p2_out)); save_item(NAME(m_beeper_latch)); } WRITE_LINE_MEMBER(keytronic_l2207_device::ser_in_w) { m_mcu->set_input_line(MCS48_INPUT_IRQ, state ? CLEAR_LINE : ASSERT_LINE); } u8 keytronic_l2207_device::led_latch_r() { if (!machine().side_effects_disabled()) { u8 led_data = m_mcu->p1_r(); if (BIT(m_p2_out, 6)) m_beeper->level_w(BIT(led_data, 0)); m_beeper_latch = BIT(led_data, 0); m_leds[0] = !BIT(led_data, 1); for (int n = 1; n < 8; n++) m_leds[n] = BIT(led_data, n); } return 0; } u8 keytronic_l2207_device::p1_r() { return m_p1_in; } void keytronic_l2207_device::p2_w(u8 data) { if (BIT(data, 5) != BIT(m_p2_out, 5)) m_ser_out_callback(BIT(data, 5)); if (!BIT(data, 4)) m_p1_in = 0xff; else if (!BIT(m_p2_out, 4)) { u8 j = m_mcu->p1_r() & 0x0f; if (j < 12) m_p1_in = m_keys[j]->read(); } if (m_beeper_latch && BIT(data, 6) != BIT(m_p2_out, 6)) m_beeper->level_w(BIT(data, 6)); m_all_caps = BIT(data, 7); m_p2_out = data; } void keytronic_l2207_device::prog_map(address_map &map) { map.global_mask(0x7ff); map(0x000, 0x7ff).rom().region("eprom", 0); } void keytronic_l2207_device::ext_map(address_map &map) { map(0x00, 0xff).r(FUNC(keytronic_l2207_device::led_latch_r)).nopw(); // WR connected for parallel interface only } static INPUT_PORTS_START(keytronic_l2207) PORT_START("KEYS0") PORT_BIT(0x0d, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Set-Up") PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_CODE(KEYCODE_ESC) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Ctrl") PORT_CHAR(UCHAR_SHIFT_2) PORT_CODE(KEYCODE_LCONTROL) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Caps Lock") PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) PORT_CODE(KEYCODE_CAPSLOCK) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CHAR(UCHAR_MAMEKEY(RSHIFT)) PORT_CODE(KEYCODE_RSHIFT) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CHAR(UCHAR_SHIFT_1) PORT_CODE(KEYCODE_LSHIFT) PORT_START("KEYS1") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CHAR(0x1b) PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('1') PORT_CHAR('!') PORT_CODE(KEYCODE_1) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Tab") PORT_CHAR(0x09) PORT_CODE(KEYCODE_TAB) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Q") PORT_CHAR('q') PORT_CHAR('Q') PORT_CHAR(0x11) PORT_CODE(KEYCODE_Q) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A") PORT_CHAR('a') PORT_CHAR('A') PORT_CHAR(0x01) PORT_CODE(KEYCODE_A) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("S") PORT_CHAR('s') PORT_CHAR('S') PORT_CHAR(0x13) PORT_CODE(KEYCODE_S) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("No Scrl") PORT_CODE(KEYCODE_LALT) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) PORT_START("KEYS2") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('2') PORT_CHAR('@') PORT_CODE(KEYCODE_2) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME(u8"3 # £") PORT_CHAR('3') PORT_CHAR('#', 0x00a3) PORT_CODE(KEYCODE_3) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("W") PORT_CHAR('w') PORT_CHAR('W') PORT_CHAR(0x17) PORT_CODE(KEYCODE_W) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E") PORT_CHAR('e') PORT_CHAR('E') PORT_CHAR(0x05) PORT_CODE(KEYCODE_E) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D") PORT_CHAR('d') PORT_CHAR('D') PORT_CHAR(0x04) PORT_CODE(KEYCODE_D) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F") PORT_CHAR('f') PORT_CHAR('F') PORT_CHAR(0x06) PORT_CODE(KEYCODE_F) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Z") PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR(0x1a) PORT_CODE(KEYCODE_Z) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("X") PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(0x18) PORT_CODE(KEYCODE_X) PORT_START("KEYS3") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('4') PORT_CHAR('$') PORT_CODE(KEYCODE_4) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('5') PORT_CHAR('%') PORT_CODE(KEYCODE_5) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("R") PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR(0x12) PORT_CODE(KEYCODE_R) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("T") PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR(0x14) PORT_CODE(KEYCODE_T) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("G Bell") PORT_CHAR('g') PORT_CHAR('G') PORT_CHAR(0x07) PORT_CODE(KEYCODE_G) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("H") PORT_CHAR('h') PORT_CHAR('H') PORT_CODE(KEYCODE_H) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C") PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR(0x03) PORT_CODE(KEYCODE_C) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("V") PORT_CHAR('v') PORT_CHAR('V') PORT_CHAR(0x16) PORT_CODE(KEYCODE_V) PORT_START("KEYS4") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('6') PORT_CHAR('^') PORT_CODE(KEYCODE_6) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('7') PORT_CHAR('&') PORT_CODE(KEYCODE_7) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Y") PORT_CHAR('y') PORT_CHAR('y') PORT_CHAR(0x19) PORT_CODE(KEYCODE_Y) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("U") PORT_CHAR('u') PORT_CHAR('u') PORT_CHAR(0x15) PORT_CODE(KEYCODE_U) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("J") PORT_CHAR('j') PORT_CHAR('j') PORT_CODE(KEYCODE_J) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("K") PORT_CHAR('k') PORT_CHAR('k') PORT_CHAR(0x0b) PORT_CODE(KEYCODE_K) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B") PORT_CHAR('b') PORT_CHAR('b') PORT_CHAR(0x02) PORT_CODE(KEYCODE_B) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("N") PORT_CHAR('n') PORT_CHAR('n') PORT_CHAR(0x0e) PORT_CODE(KEYCODE_N) PORT_START("KEYS5") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('8') PORT_CHAR('*') PORT_CODE(KEYCODE_8) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('9') PORT_CHAR('(') PORT_CODE(KEYCODE_9) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("I") PORT_CHAR('i') PORT_CHAR('I') PORT_CODE(KEYCODE_I) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("O") PORT_CHAR('o') PORT_CHAR('O') PORT_CHAR(0x0f) PORT_CODE(KEYCODE_O) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("L") PORT_CHAR('l') PORT_CHAR('L') PORT_CHAR(0x0c) PORT_CODE(KEYCODE_L) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(';') PORT_CHAR(':') PORT_CODE(KEYCODE_COLON) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("M") PORT_CHAR('m') PORT_CHAR('M') PORT_CODE(KEYCODE_M) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(',') PORT_CHAR('<') PORT_CODE(KEYCODE_COMMA) PORT_START("KEYS6") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('0') PORT_CHAR(')') PORT_CODE(KEYCODE_0) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('-') PORT_CHAR('_') PORT_CODE(KEYCODE_MINUS) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("P") PORT_CHAR('p') PORT_CHAR('P') PORT_CHAR(0x10) PORT_CODE(KEYCODE_P) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('[') PORT_CHAR('{') PORT_CODE(KEYCODE_OPENBRACE) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('\'') PORT_CHAR('"') PORT_CODE(KEYCODE_QUOTE) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Return") PORT_CHAR(0x0d) PORT_CODE(KEYCODE_ENTER) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('.') PORT_CHAR('>') PORT_CODE(KEYCODE_STOP) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('/') PORT_CHAR('?') PORT_CODE(KEYCODE_SLASH) PORT_START("KEYS7") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('=') PORT_CHAR('+') PORT_CODE(KEYCODE_EQUALS) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('`') PORT_CHAR('~') PORT_CODE(KEYCODE_BACKSLASH) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(']') PORT_CHAR('}') PORT_CODE(KEYCODE_CLOSEBRACE) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR('\\') PORT_CHAR('|') PORT_CODE(KEYCODE_PGUP) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) PORT_CODE(KEYCODE_1_PAD) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD)) PORT_CODE(KEYCODE_0_PAD) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Line Feed") PORT_CHAR(0x0a) PORT_CODE(KEYCODE_PGDN) PORT_START("KEYS8") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Back Space") PORT_CHAR(0x08) PORT_CODE(KEYCODE_BACKSPACE) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Break") PORT_CODE(KEYCODE_INSERT) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Del") PORT_CHAR(UCHAR_MAMEKEY(DEL)) PORT_CODE(KEYCODE_DEL) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD)) PORT_CODE(KEYCODE_4_PAD) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) PORT_CODE(KEYCODE_2_PAD) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD)) PORT_CODE(KEYCODE_3_PAD) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(DEL_PAD)) PORT_CODE(KEYCODE_DEL_PAD) PORT_START("KEYS9") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD)) PORT_CODE(KEYCODE_7_PAD) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD)) PORT_CODE(KEYCODE_8_PAD) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD)) PORT_CODE(KEYCODE_5_PAD) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD)) PORT_CODE(KEYCODE_6_PAD) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("PF2") PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_CODE(KEYCODE_F2) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("PF1") PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_CODE(KEYCODE_F1) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_CODE(KEYCODE_LEFT) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_CODE(KEYCODE_DOWN) PORT_START("KEYS10") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD)) PORT_CODE(KEYCODE_9_PAD) PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) PORT_CODE(KEYCODE_MINUS_PAD) PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) PORT_CODE(KEYCODE_PLUS_PAD) PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("PF4") PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_CODE(KEYCODE_F4) PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("PF3") PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_CODE(KEYCODE_F3) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_CODE(KEYCODE_RIGHT) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_CODE(KEYCODE_UP) PORT_START("KEYS11") PORT_BIT(0x5f, IP_ACTIVE_LOW, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) PORT_CODE(KEYCODE_ENTER_PAD) PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CHAR(' ') PORT_CODE(KEYCODE_SPACE) INPUT_PORTS_END ioport_constructor keytronic_l2207_device::device_input_ports() const { return INPUT_PORTS_NAME(keytronic_l2207); } void keytronic_l2207_device::device_add_mconfig(machine_config &config) { I8035(config, m_mcu, 3.579545_MHz_XTAL); // P8035HL + 48-00300-010 XTAL m_mcu->set_addrmap(AS_PROGRAM, &keytronic_l2207_device::prog_map); m_mcu->set_addrmap(AS_IO, &keytronic_l2207_device::ext_map); m_mcu->p1_in_cb().set(FUNC(keytronic_l2207_device::p1_r)); m_mcu->p2_out_cb().set(FUNC(keytronic_l2207_device::p2_w)); m_mcu->t0_in_cb().set_constant(1); // tied to EA m_mcu->t1_in_cb().set_constant(0); // pulled up for inverted parallel output m_mcu->bus_out_cb().set_nop(); // WR connected for parallel interface only m_mcu->prog_out_cb().set_nop(); // STB on parallel connector SPEAKER(config, "mono").front_center(); // 48-00125-000 + flyback diode SPEAKER_SOUND(config, m_beeper).add_route(ALL_OUTPUTS, "mono", 0.5); } ROM_START(keytronic_l2207) ROM_REGION(0x800, "eprom", 0) ROM_SYSTEM_BIOS(0, "a65_02207", "A65-02207-051/2510") // from Wicat System 150 ROMX_LOAD("w150_ns2758.bin", 0x000, 0x400, CRC(f65e1ca5) SHA1(7919385fe8badbb610b793a3f5e4077982094aaa), ROM_BIOS(0)) ROM_RELOAD(0x400, 0x400) ROM_SYSTEM_BIOS(1, "a65_02675", "A65-02675-051") ROMX_LOAD("key_05__162092859__8-23-82.bin", 0x000, 0x800, CRC(970b11a3) SHA1(a1c9c505eb3ccf132307b2ac0e04b0326f50621e), ROM_BIOS(1)) // MM2716Q ROM_END const tiny_rom_entry *keytronic_l2207_device::device_rom_region() const { return ROM_NAME(keytronic_l2207); }