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Diffstat (limited to 'src/devices/bus/nscsi/applecd.cpp')
-rw-r--r-- | src/devices/bus/nscsi/applecd.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/devices/bus/nscsi/applecd.cpp b/src/devices/bus/nscsi/applecd.cpp new file mode 100644 index 00000000000..aec8a154c7a --- /dev/null +++ b/src/devices/bus/nscsi/applecd.cpp @@ -0,0 +1,92 @@ +// license:BSD-3-Clause +// copyright-holders:AJR +/******************************************************************************* + + Skeleton device for Apple external CD-ROM drives. + + PCB: 1-631-957-15 + + Microcontrollers: + - Intel S80C31-1 + - Mitsubishi M37450M8-452FP © SONY '91 + + Memories: + - National NMC27C256Q (or BQ) 32,768x8 EEPROM (for 80C31) + - Sony CXK5864BM-12L 8,192x8 Static RAM (x2) + (one near EEPROM, one between LC8951 and M37450M8) + - Fujitsu MB81464-12 65,536x4 Dynamic RAM (x2: for CXD1184) + - Fujitsu MB81C79A-45 8,192x9 Static RAM (for LC8951) + - Sony CXK5816MS-12L 2,048x8 Static RAM (near CXD1135) + + Other major digital ICs: + - Sony CXD1180AQ SCSI Controller + - Sony CXD1184Q + - Sanyo LC8951 CD-ROM Error Correction & Host Interface Processor + - Sony CXD1135Q + + Linear ICs: + - Toshiba TC9154AP Dual Volume Control + - Burr-Brown PCM67U Dual Audio DAC + - Sony CXA1182Q-Z CD Servo Signal Processor + - Sony CXA1081M + - Toshiba TA8406P Dual Power Operational Amplifier (x3) + + XTALs: 12A KSS2A (80C31?), 20A KSS2A (CXD1184), D167 (LC8951?) + +*******************************************************************************/ + +#include "emu.h" +#include "applecd.h" + +#include "cpu/mcs51/mcs51.h" +#include "cpu/m6502/m3745x.h" +#include "machine/ncr5380.h" + +DEFINE_DEVICE_TYPE(APPLECD150, applecd150_device, "aplcd150", "AppleCD 150") + +applecd150_device::applecd150_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) + : device_t(mconfig, APPLECD150, tag, owner, clock) + , nscsi_slot_card_interface(mconfig, *this, "scsic") +{ +} + +void applecd150_device::device_start() +{ +} + +void applecd150_device::prog_map(address_map &map) +{ + map(0x0000, 0x7fff).rom().region("eeprom", 0); +} + +void applecd150_device::ext_map(address_map &map) +{ + map(0xc020, 0xc027).m("scsic", FUNC(cxd1180_device::map)); +} + +void applecd150_device::device_add_mconfig(machine_config &config) +{ + i80c31_device &mcu1(I80C31(config, "mcu1", 12_MHz_XTAL)); + mcu1.set_addrmap(AS_PROGRAM, &applecd150_device::prog_map); + mcu1.set_addrmap(AS_IO, &applecd150_device::ext_map); + + M37450(config, "mcu2", 16.9344_MHz_XTAL / 2).set_disable(); + + CXD1180(config, "scsic").irq_handler().set_inputline("mcu1", MCS51_INT1_LINE); + + //LC8951(config, "cdintf", 16.9344_MHz_XTAL); +} + +ROM_START(aplcd150) + ROM_REGION(0x8000, "eeprom", 0) + ROM_LOAD("apl_1.8g_1289.ic303", 0x0000, 0x8000, CRC(54ebf81f) SHA1(e4cd656e2a433229543e874a29f1567758170fc6)) + + ROM_REGION(0x4000, "mcu2", 0) + ROM_LOAD("m37450m8-452fp.ic201", 0x0000, 0x4000, NO_DUMP) +ROM_END + +const tiny_rom_entry *applecd150_device::device_rom_region() const +{ + return ROM_NAME(aplcd150); +} + |