<machine name="z80sio" sourcefile="devices/machine/z80sio.cpp" isdevice="yes" runnable="no" isbios="no" ismechanical="no">
  <description>Z80 SIO</description>
  <device_ref tag=":_tmp:cha" name="z80sio_channel" />
  <device_ref tag=":_tmp:chb" name="z80sio_channel" />
</machine>