summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/machine/keytronic_l2207.cpp
blob: 2cd5db800e09c2c13c1e1a27c8ac0950f7962214 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
// 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();
}

void keytronic_l2207_device::device_start()
{
	save_item(NAME(m_p1_in));
	save_item(NAME(m_p2_out));
	save_item(NAME(m_beeper_latch));
}

void keytronic_l2207_device::ser_in_w(int state)
{
	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);
}