{
  "machine": {
    "name": "c1541pd",
    "sourcefile": "devices/bus/cbmiec/c1541.cpp",
    "isdevice": "yes",
    "runnable": "no",
    "isbios": "no",
    "ismechanical": "no",
    "description": "Commodore 1541 Professional-DOS v1 Disk Drive",
    "rom": [
      {
        "name": "325302-01.uab4",
        "size": "8192",
        "crc": "29ae9752",
        "sha1": "8e0547430135ba462525c224e76356bd3d430f11",
        "region": "ucd5",
        "offset": "0",
        "status": "good",
        "optional": "no"
      },
      {
        "name": "professionaldos-v1-floppy-expansion-eprom-27128.bin",
        "size": "16384",
        "crc": "c9abf072",
        "sha1": "2b26adc1f4192b6ca1514754f73c929087b24426",
        "region": "ucd5",
        "offset": "2000",
        "status": "good",
        "optional": "no"
      }
    ],
    "device_ref": [
      {
        "tag": ":_tmp:ucd5",
        "name": "m6502"
      },
      {
        "tag": ":_tmp:uab1",
        "name": "mos6522"
      },
      {
        "tag": ":_tmp:ucd4",
        "name": "mos6522"
      },
      {
        "tag": ":_tmp:uc4",
        "name": "c64h156"
      },
      {
        "tag": ":_tmp:uc4:0",
        "name": "floppy_connector"
      }
    ],
    "chip": {
      "type": "cpu",
      "tag": ":ucd5",
      "name": "MOS Technology 6502",
      "clock": "1000000"
    },
    "dipswitch": {
      "name": "Device Address",
      "tag": ":ADDRESS",
      "mask": "3",
      "dipvalue": [
        {
          "name": "8",
          "value": "0",
          "default": "yes"
        },
        {
          "name": "9",
          "value": "1",
          "default": "no"
        },
        {
          "name": "10",
          "value": "2",
          "default": "no"
        },
        {
          "name": "11",
          "value": "3",
          "default": "no"
        }
      ]
    }
  }
}