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|
/*
Omnibyte MSBC-1
PCB Layout
----------
REV B
|-----------------------------------------------------------|
| CN1 CN2 CN3 CN4 SW1 CN5 |
| |
| 3.6864MHz 3.6864MHz ROM1 |
| ROM0 |
| SIO SIO SW3 SW2 |
| PIT |
| 12.5MHz 41256 41256 41256 |
| 41256 41256 41256 |
| 8MHz CPU 41245 41256 |
| |
| 8419 |
| SW4 |
|-|-------------CN6----------------|----|-------CN7-------|-|
|--------------------------------| |-----------------|
Notes:
Relevant IC's shown.
CPU - Motorola MC68000R12
SIO - Mostek MK68564N-5A Serial Input/Output
PIT - Motorola MC68230L10 Parallel Interface/Timer
8419 - National Semiconductor DP8419N DRAM Controller
41256 - Fujitsu MB81256-12 256Kx1 RAM
ROM0 - AMD AM27128ADC 16Kx8 ROM "47-2818-36G1"
ROM1 - AMD AM27128ADC 16Kx8 ROM "47-2818-36G2"
SW1 - push button
SW2 - rotary hex DIP
SW3 - rotary hex DIP
SW4 - DIP8
CN1 -
CN2 -
CN3 -
CN4 -
CN5 -
CN6 -
CN7 -
*/
#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "machine/terminal.h"
#include "includes/msbc1.h"
static ADDRESS_MAP_START( msbc1_mem, AS_PROGRAM, 16, msbc1_state )
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x000000, 0x03ffff) AM_RAM
AM_RANGE(0xf80000, 0xf87fff) AM_ROM AM_REGION(MC68000R12_TAG, 0)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( msbc1 )
INPUT_PORTS_END
void msbc1_state::machine_reset()
{
void *ram = m_maincpu->space(AS_PROGRAM).get_write_ptr(0);
UINT8 *rom = memregion(MC68000R12_TAG)->base();
memcpy(ram, rom, 8);
m_maincpu->reset();
}
static GENERIC_TERMINAL_INTERFACE( terminal_intf )
{
DEVCB_NULL
};
static MACHINE_CONFIG_START( msbc1, msbc1_state )
/* basic machine hardware */
MCFG_CPU_ADD(MC68000R12_TAG, M68000, XTAL_12_5MHz)
MCFG_CPU_PROGRAM_MAP(msbc1_mem)
// devices
MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( msbc1 )
ROM_REGION16_BE( 0x8000, MC68000R12_TAG, 0 )
ROM_LOAD16_BYTE( "47-2818-36g1.u18", 0x0000, 0x4000, CRC(14f25d47) SHA1(964bc49c1dd9e9680c0d3d89ff3794c5044bea62) )
ROM_LOAD16_BYTE( "47-2818-36g2.u19", 0x0001, 0x4000, CRC(4814b9e1) SHA1(d96cf75084c6588cb33513830c6beeeffc2de853) )
ROM_REGION( 0x100, "plds", 0 )
ROM_LOAD( "p21.1.u22", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p22.0.u37", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p23.0.u38", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p24.0.u43", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p25.0.u44", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p26.0.u45", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p27.0.u46", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p28.1.u49", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p29.0.u58", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p30.0.u60", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p31.0.u61", 0x000, 0x100, NO_DUMP )
ROM_LOAD( "p32.0.u76", 0x000, 0x100, NO_DUMP )
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1985, msbc1, 0, 0, msbc1, msbc1, driver_device, 0, "Omnibyte", "MSBC-1", GAME_NOT_WORKING | GAME_NO_SOUND)
|