/***************************************************************************
esqkt.c - Ensoniq KT-76, KT-88, and E-Prime
Driver by R. Belmont
Hardware:
CPU: 68EC020-16 CPU
Serial/timers: SCN2681 (MC68681 clone)
Sound: 2xES5506
Effects: ES5510
Memory map:
0x000000-0x07FFFF OS ROM
0x200000-0x20003F Master ES5506
0x240000-0x24003F Slave ES5506
0x280000-0x2801FF ES5510
0x300000-0x30000F 68681 DUART
0xFF0000-0xFFFFFF OS RAM
Ensoniq KT-76
Ensoniq 1994
This is a wavetable-based synth keyboard made by Ensoniq in 1994
PCB Layout
----------
KT-76
|---------------------------------------------|
|J12 J3 J11 J10 |
| LM393 LM358|
| 74HC4051|
|ADM691 |
| 62256 |
| |
|3V_BATTERY KT76_0590_LO.U5 ROM0 |
| |
| 68EC020 62256 OTTOR2 ROM1 |
| |
| KT76_690B_HI.U6 ROM2 |
| PAL1 |
| HP_6N138 |
| PAL2 OTTOR2 J6|
| 7407 |
| |
| D41464 D41464 |
| |
| SCN2681 D41464 D41464 |
| 137000402 |
| |
| 18.432MHz |
| ESPR6 16MHz |
| POT |
| R1136-11 |
| |
| LM339 LM339 |
| J13 J5 J1 J2 J4 |
|---------------------------------------------|
Notes:
J1 - connector for digital jacks
J2 - connector for keyboard
J3 - connector for LCD display
J4 - connector for keyboard
J5 - connector for power input
J6 - connector for wave expansion
J10 - connector for wheels/pressure
J11 - connector for memory card
J12 - connector for headphones
J13 - connector for analog jacks
68EC020 - Motorola MC68EC020FG16 CPU. Clock input 16MHz
1370000402 - Unknown PLCC44 IC stamped with the Ensoniq logo. Likely CPLD or gate array.
ESPR6 - Ensoniq ESPR6 (ES5510) sound chip
OTTOR2 - Ensoniq OTTOR2 (ES5506) sound chip
POT - ESP adjustment pot
KT76* - 27C2048/27C210 EPROM
ROM* - 2M x8-bit SOP44 mask ROM
R1136-11 - DIP40 IC manufactured by Rockwell - believed to be some type of MCU.
D41464 - NEC D41464 64k x4-bit DRAM
62256 - 32k x8-bit SRAM
SCN2681 - Philips SCN2681 Dual Universal Asynchronous Receiver/Transmitter (DUART)
HP_6N138 - HP/Agilent HP 6N138 Low Input Current High Gain Optocoupler
PAL1 - MMI PAL20L8ACN stamped 'KT-76 MMU 6A0A'. Printing is faint so 0 could be a B or a D.
PAL2 - MMI PAL20L8ACN stamped 'KT-76 BCU 73D6'
***************************************************************************/
#include "bus/midi/midi.h"
#include "cpu/m68000/m68000.h"
#include "cpu/es5510/es5510.h"
#include "sound/es5506.h"
#include "machine/mc68681.h"
#include "machine/esqpanel.h"
class esqkt_state : public driver_device
{
public:
esqkt_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_esp(*this, "esp"),
m_duart(*this, "duart"),
m_sq1panel(*this, "sq1panel"),
m_mdout(*this, "mdout")
{ }
required_device<m68ec020_device> m_maincpu;
required_device<es5510_device> m_esp;
required_device<mc68681_device> m_duart;
required_device<esqpanel2x40_sq1_device> m_sq1panel;
required_device<midi_port_device> m_mdout;
virtual void machine_reset();
DECLARE_WRITE_LINE_MEMBER(duart_irq_handler);
DECLARE_WRITE_LINE_MEMBER(duart_tx_a);
DECLARE_WRITE_LINE_MEMBER(duart_tx_b);
DECLARE_WRITE8_MEMBER(duart_output);
UINT8 m_duart_io;
bool m_bCalibSecondByte;
private:
UINT32 *m_rom, *m_ram;
public:
DECLARE_DRIVER_INIT(kt);
DECLARE_INPUT_CHANGED_MEMBER(key_stroke);
DECLARE_WRITE_LINE_MEMBER(esq5506_otto_irq);
DECLARE_READ16_MEMBER(esq5506_read_adc);
};
void esqkt_state::machine_reset()
{
m_bCalibSecondByte = false;
}
static ADDRESS_MAP_START( kt_map, AS_PROGRAM, 32, esqkt_state )
AM_RANGE(0x000000, 0x07ffff) AM_ROM AM_REGION("osrom", 0)
AM_RANGE(0x200000, 0x20003f) AM_DEVREADWRITE8("ensoniq", es5506_device, read, write, 0xffffffff)
AM_RANGE(0x240000, 0x24003f) AM_DEVREADWRITE8("ensoniq2", es5506_device, read, write, 0xffffffff)
AM_RANGE(0x280000, 0x2801ff) AM_DEVREADWRITE8("esp", es5510_device, host_r, host_w, 0xffffffff)
AM_RANGE(0x300000, 0x30001f) AM_DEVREADWRITE8("duart", mc68681_device, read, write, 0xffffffff)
AM_RANGE(0xff0000, 0xffffff) AM_RAM AM_SHARE("osram")
ADDRESS_MAP_END
WRITE_LINE_MEMBER(esqkt_state::esq5506_otto_irq)
{
#if 0 // 5505/06 IRQ generation needs (more) work
m_maincpu->set_input_line(1, state);
#endif
}
READ16_MEMBER(esqkt_state::esq5506_read_adc)
{
switch ((m_duart_io & 7) ^ 7)
{
case 0: // vRef to check battery
return 0x5b00;
case 2: // battery voltage
return 0x7f00;
default: // pedal
return 0;
}
if (m_duart_io & 1)
{
return 0x5b00; // vRef
}
else
{
return 0x7f00; // vBattery
}
}
WRITE_LINE_MEMBER(esqkt_state::duart_irq_handler)
{
m_maincpu->set_input_line(M68K_IRQ_3, state);
};
WRITE8_MEMBER(esqkt_state::duart_output)
{
m_duart_io = data;
// printf("DUART output: %02x (PC=%x)\n", data, m_maincpu->pc());
}
WRITE_LINE_MEMBER(esqkt_state::duart_tx_a)
{
m_mdout->write_txd(state);
}
WRITE_LINE_MEMBER(esqkt_state::duart_tx_b)
{
m_sq1panel->rx_w(state);
}
static MACHINE_CONFIG_START( kt, esqkt_state )
MCFG_CPU_ADD("maincpu", M68EC020, XTAL_16MHz)
MCFG_CPU_PROGRAM_MAP(kt_map)
MCFG_CPU_ADD("esp", ES5510, XTAL_10MHz)
MCFG_DEVICE_DISABLE()
MCFG_ESQPANEL2x40_SQ1_ADD("sq1panel")
MCFG_ESQPANEL_TX_CALLBACK(DEVWRITELINE("duart", mc68681_device, rx_b_w))
MCFG_MC68681_ADD("duart", 4000000)
MCFG_MC68681_IRQ_CALLBACK(WRITELINE(esqkt_state, duart_irq_handler))
MCFG_MC68681_A_TX_CALLBACK(WRITELINE(esqkt_state, duart_tx_a))
MCFG_MC68681_B_TX_CALLBACK(WRITELINE(esqkt_state, duart_tx_b))
MCFG_MC68681_OUTPORT_CALLBACK(WRITE8(esqkt_state, duart_output))
MCFG_MC68681_SET_EXTERNAL_CLOCKS(500000, 500000, 1000000, 1000000)
MCFG_MC68681_SET_EXTERNAL_CLOCKS(500000, 500000, 1000000, 1000000)
MCFG_MIDI_PORT_ADD("mdin", midiin_slot, "midiin")
MCFG_MIDI_RX_HANDLER(DEVWRITELINE("duart", mc68681_device, rx_a_w)) // route MIDI Tx send directly to 68681 channel A Rx
MCFG_MIDI_PORT_ADD("mdout", midiout_slot, "midiout")
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_SOUND_ADD("ensoniq", ES5506, XTAL_16MHz)
MCFG_ES5506_REGION0("waverom") /* Bank 0 */
MCFG_ES5506_REGION1("waverom2") /* Bank 1 */
MCFG_ES5506_REGION2("waverom3") /* Bank 0 */
MCFG_ES5506_REGION3("waverom4") /* Bank 1 */
MCFG_ES5506_CHANNELS(1) /* channels */
MCFG_ES5506_IRQ_CB(WRITELINE(esqkt_state, esq5506_otto_irq)) /* irq */
MCFG_ES5506_READ_PORT_CB(READ16(esqkt_state, esq5506_read_adc))
MCFG_SOUND_ROUTE(0, "lspeaker", 0.5)
MCFG_SOUND_ROUTE(1, "rspeaker", 0.5)
MCFG_SOUND_ADD("ensoniq2", ES5506, XTAL_16MHz)
MCFG_ES5506_REGION0("waverom") /* Bank 0 */
MCFG_ES5506_REGION1("waverom2") /* Bank 1 */
MCFG_ES5506_REGION2("waverom3") /* Bank 0 */
MCFG_ES5506_REGION3("waverom4") /* Bank 1 */
MCFG_ES5506_CHANNELS(1) /* channels */
MCFG_SOUND_ROUTE(0, "lspeaker", 0.5)
MCFG_SOUND_ROUTE(1, "rspeaker", 0.5)
MACHINE_CONFIG_END
static INPUT_PORTS_START( kt )
INPUT_PORTS_END
ROM_START( kt76 )
ROM_REGION(0x80000, "osrom", 0)
ROM_LOAD32_WORD( "kt76_162_lo.bin", 0x000000, 0x020000, CRC(1a1ab910) SHA1(dcc80db2297fd25993e090c2e5bb7f947319a8bf) )
ROM_LOAD32_WORD( "kt76_162_hi.bin", 0x000002, 0x040000, CRC(de16d236) SHA1(c55fca86453e90e8c34a048bed45817063237370) )
ROM_REGION(0x400000, "waverom", ROMREGION_ERASE00)
ROM_LOAD16_BYTE( "1351000401_rom0.u103", 0x000001, 0x200000, CRC(425047af) SHA1(9680d1fc222b29ba24f0fbf6136982bee87a60ef) )
ROM_REGION(0x400000, "waverom2", ROMREGION_ERASE00)
ROM_LOAD16_BYTE( "1351000402_rom1.u102", 0x000001, 0x200000, CRC(64459185) SHA1(0fa20b16847fc02a384057fc3d385226eb3e7527) )
ROM_REGION(0x400000, "waverom3", ROMREGION_ERASE00)
ROM_LOAD16_BYTE( "1351000403_rom2.u104", 0x000001, 0x200000, CRC(c2aacc5d) SHA1(7fab518ba92ddb23cdc4dcb04751b26d25c298c0) )
ROM_REGION(0x200000, "waverom4", ROMREGION_ERASE00)
ROM_END
DRIVER_INIT_MEMBER(esqkt_state, kt)
{
m_duart_io = 0;
}
CONS( 1996, kt76, 0, 0, kt, kt, esqkt_state, kt, "Ensoniq", "KT-76", GAME_IMPERFECT_SOUND )