// license:BSD-3-Clause // copyright-holders:AJR /******************************************************************************* Skeleton device for Conner CFP1080S SCSI hard drive. Hardware includes "INDY" and "OCEANVIEW" QFP128 ICs by NCR. The MCU is a QFP144 type labeled SC415902BFV. Model - Conner CFP1080S Interface - Fast SCSI-2 Capacity 1080MB C/H/S - 2794/8/72-114 Total Blocks - 2,177,184 *******************************************************************************/ #include "emu.h" #include "bus/nscsi/cfp1080s.h" #include "cpu/m68hc16/m68hc16z.h" DEFINE_DEVICE_TYPE(CFP1080S, cfp1080s_device, "cfp1080s", "Conner CFP1080S") cfp1080s_device::cfp1080s_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock) : nscsi_device(mconfig, CFP1080S, tag, owner, clock) , nscsi_slot_card_interface(mconfig, *this, DEVICE_SELF) , m_hdcpu(*this, "hdcpu") , m_addrptr(0) { } void cfp1080s_device::device_start() { save_item(NAME(m_addrptr)); } u8 cfp1080s_device::ff081_r() { return 0x80; // code often loops until bit 7 of this status register is set } u8 cfp1080s_device::ff082_r() { return 0; // bit 6 tested } void cfp1080s_device::data_port_w(u8 data) { logerror("Writing $%02X to data port (address pointer = $%06X)\n", data, m_addrptr); } void cfp1080s_device::addrptrl_w(u8 data) { m_addrptr = (m_addrptr & 0xffff00) | data; } void cfp1080s_device::addrptrm_w(u8 data) { m_addrptr = (m_addrptr & 0xff00ff) | u32(data) << 8; } void cfp1080s_device::addrptrh_w(u8 data) { m_addrptr = (m_addrptr & 0x00ffff) | u32(data) << 16; } void cfp1080s_device::mem_map(address_map &map) { map(0x00000, 0x1ffff).rom().region("firmware", 0); map(0x20000, 0x21fff).ram(); map(0xff081, 0xff081).r(FUNC(cfp1080s_device::ff081_r)); map(0xff082, 0xff082).r(FUNC(cfp1080s_device::ff082_r)); map(0xff090, 0xff090).w(FUNC(cfp1080s_device::data_port_w)); map(0xff098, 0xff098).w(FUNC(cfp1080s_device::addrptrl_w)); map(0xff099, 0xff099).w(FUNC(cfp1080s_device::addrptrm_w)); map(0xff09a, 0xff09a).w(FUNC(cfp1080s_device::addrptrh_w)); map(0xff8c6, 0xff8c7).noprw(); // ? } void cfp1080s_device::device_add_mconfig(machine_config &config) { MC68HC16Z1(config, m_hdcpu, 20'000'000); // exact type and clock unknown m_hdcpu->set_addrmap(AS_PROGRAM, &cfp1080s_device::mem_map); } ROM_START(cfp1080s) ROM_REGION16_BE(0x20000, "firmware", 0) ROM_LOAD16_WORD_SWAP("conner_cfp1080s.bin", 0x00000, 0x20000, CRC(3254150a) SHA1(605be871e75ff775554fc8ce4e09bc2e35a6db09)) ROM_END const tiny_rom_entry *cfp1080s_device::device_rom_region() const { return ROM_NAME(cfp1080s); }