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msbc1: Add more RAM and MC68230 PIT (nw)

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This commit is contained in:
AJR 2019-10-29 16:31:19 -04:00
parent 736962d5e7
commit e3a3dece3e
1 changed files with 6 additions and 2 deletions
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8
src/mame/drivers/msbc1.cpp
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@ -2,7 +2,7 @@
// copyright-holders:Miodrag Milanovic, Curt Coder // copyright-holders:Miodrag Milanovic, Curt Coder
/* /*
Omnibyte MSBC-1 Omnibyte MSBC-1 Multibus Single Board Computer
PCB Layout PCB Layout
---------- ----------
@ -52,6 +52,7 @@ Notes:
#include "emu.h" #include "emu.h"
#include "cpu/m68000/m68000.h" #include "cpu/m68000/m68000.h"
#include "machine/68230pit.h"
#include "machine/z80sio.h" #include "machine/z80sio.h"
#define MC68000R12_TAG "u50" #define MC68000R12_TAG "u50"
@ -78,10 +79,11 @@ private:
void msbc1_state::msbc1_mem(address_map &map) void msbc1_state::msbc1_mem(address_map &map)
{ {
map.unmap_value_high(); map.unmap_value_high();
map(0x000000, 0x03ffff).ram(); map(0x000000, 0x5fffff).ram();
map(0xf80000, 0xf87fff).rom().region(MC68000R12_TAG, 0); map(0xf80000, 0xf87fff).rom().region(MC68000R12_TAG, 0);
map(0xfffa00, 0xfffa3f).rw("sio1", FUNC(mk68564_device::read), FUNC(mk68564_device::write)).umask16(0x00ff); map(0xfffa00, 0xfffa3f).rw("sio1", FUNC(mk68564_device::read), FUNC(mk68564_device::write)).umask16(0x00ff);
map(0xfffc00, 0xfffc3f).rw("sio2", FUNC(mk68564_device::read), FUNC(mk68564_device::write)).umask16(0x00ff); map(0xfffc00, 0xfffc3f).rw("sio2", FUNC(mk68564_device::read), FUNC(mk68564_device::write)).umask16(0x00ff);
map(0xfffe00, 0xfffe3f).rw("pit", FUNC(pit68230_device::read), FUNC(pit68230_device::write)).umask16(0x00ff);
} }
/* Input ports */ /* Input ports */
@ -102,6 +104,8 @@ void msbc1_state::msbc1(machine_config &config)
M68000(config, m_maincpu, 12.5_MHz_XTAL); M68000(config, m_maincpu, 12.5_MHz_XTAL);
m_maincpu->set_addrmap(AS_PROGRAM, &msbc1_state::msbc1_mem); m_maincpu->set_addrmap(AS_PROGRAM, &msbc1_state::msbc1_mem);
PIT68230(config, "pit", 8_MHz_XTAL);
MK68564(config, "sio1", 8_MHz_XTAL / 2).set_xtal(3.6864_MHz_XTAL); MK68564(config, "sio1", 8_MHz_XTAL / 2).set_xtal(3.6864_MHz_XTAL);
MK68564(config, "sio2", 8_MHz_XTAL / 2).set_xtal(3.6864_MHz_XTAL); MK68564(config, "sio2", 8_MHz_XTAL / 2).set_xtal(3.6864_MHz_XTAL);
} }