Owner's Manual
Page 107
... TO HOST port of all songs, styles and Multi Pads is MIDI data. Transmits the PSR-540's keyboard information as a MIDI interface device, meaning that a specialized MIDI interface device is not necessary. The included disk contains the Yamaha MIDI driver. • Special MIDI cables (sold separately) must be used for connecting to a personal computer...
... TO HOST port of all songs, styles and Multi Pads is MIDI data. Transmits the PSR-540's keyboard information as a MIDI interface device, meaning that a specialized MIDI interface device is not necessary. The included disk contains the Yamaha MIDI driver. • Special MIDI cables (sold separately) must be used for connecting to a personal computer...