// license:BSD-3-Clause // copyright-holders:Olivier Galibert /******************************************************************************* Skeleton device for Sony/Apple CRD-254SH 4x cdrom reader *******************************************************************************/ // Chips: // - Hitachi H8/3040 : CPU, external rom mode // - Sanyo LC89512W : CD-ROM error correction + SCSI // - Sanyo LC7868K : DSP for CD players // - Sanyo LC98200 : ? // - Sanyo LA9220 : Analog signal processing and servo control // - Sanyo LC78816W : ? // - Sanyo LA6531 : 2-Channel BTL-USE driver // - 2x NPN NN514256J-45 : 256Kx4 DRAM // // The LC89512W combines a LC89517 (cdrom) upgraded for 4x and a LC8945 (scsi) // The LC89517 is a LC89515 upgraded for x2 capability // The LC89515 is an enhanced LC8951, and is documented #include "emu.h" #include "crd254sh.h" DEFINE_DEVICE_TYPE(CRD254SH, crd254sh_device, "crd254sh", "Sanyo CRD-254SH CD-ROM") crd254sh_device::crd254sh_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : device_t(mconfig, CRD254SH, tag, owner, clock) , nscsi_slot_card_interface(mconfig, *this, "dummy_scsi") , m_mcu(*this, "mcu") , m_scsi(*this, "dummy_scsi") , m_rom(*this, "mcu") { } void crd254sh_device::device_start() { } void crd254sh_device::mem_map(address_map &map) { map(0x00000, 0x0ffff).rom().region("mcu", 0); } void crd254sh_device::device_add_mconfig(machine_config &config) { H83040(config, m_mcu, 20_MHz_XTAL); m_mcu->set_addrmap(AS_PROGRAM, &crd254sh_device::mem_map); NCR53C94(config, m_scsi, 25_MHz_XTAL); // Placeholder until we implement the real chip } ROM_START(crd254sh) ROM_REGION(0x10000, "mcu", 0) ROM_LOAD("crd-254s_1.02.bin", 0x00000, 0x10000, CRC(539df5f0) SHA1(edb1f7d96f351ef70b8ade03449fb63e0e0a652b)) ROM_END const tiny_rom_entry *crd254sh_device::device_rom_region() const { return ROM_NAME(crd254sh); }