// license:BSD-3-Clause // copyright-holders: Angelo Salese /************************************************************************************************** MIF-201 MIDI interface Bundled with Micro Musician VA References: - https://mamedev.emulab.it/kale/fast/files/micromusician_va.jpg TODO: - evasive, needs manual, dip-switch sheet and PCB pictures; **************************************************************************************************/ #include "emu.h" #include "mif201.h" DEFINE_DEVICE_TYPE(MIF201, mif201_device, "mif201", "Micro Musician VA MIF-201 MIDI Interface") mif201_device::mif201_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, MIF201, tag, owner, clock) , m_bus(*this, DEVICE_SELF_OWNER) , m_uart(*this, "uart%u", 1U) , m_pit(*this, "pit") { } //void mif201_device::irq_out(int state) //{ // m_bus->int_w<2>(state); //} void mif201_device::device_add_mconfig(machine_config &config) { // TODO: unknown clocks I8251(config, m_uart[0], 1021800); I8251(config, m_uart[1], 1021800); PIT8253(config, m_pit, 1021800); } void mif201_device::device_start() { // sheet claims i8251-1 having swapped ports compared to i8251-2 but micromus just uses // $e2d2 for control, assume typo. m_bus->install_io(0xe2d0, 0xe2d3, read8sm_delegate(*this, [this](offs_t offset) { return m_uart[0]->read(offset); }, "uart1_r"), write8sm_delegate(*this, [this](offs_t offset, u8 data) { m_uart[0]->write(offset, data); }, "uart1_w") ); m_bus->install_io(0xe4d0, 0xe4d3, read8sm_delegate(*this, [this](offs_t offset) { return m_uart[1]->read(offset); }, "uart2_r"), write8sm_delegate(*this, [this](offs_t offset, u8 data) { m_uart[1]->write(offset, data); }, "uart2_w") ); m_bus->install_io(0xe6d0, 0xe6d3, read8sm_delegate(*this, [this](offs_t offset) { return m_pit->read(offset); }, "pit_low_r"), write8sm_delegate(*this, [this](offs_t offset, u8 data) { m_pit->write(offset, data); }, "pit_low_w") ); m_bus->install_io(0xe7d0, 0xe7d3, read8sm_delegate(*this, [this](offs_t offset) { return m_pit->read(offset | 2); }, "pit_high_r"), write8sm_delegate(*this, [this](offs_t offset, u8 data) { m_pit->write(offset | 2, data); }, "pit_high_w") ); } void mif201_device::device_reset() { }