Yamaha PSR-9000 Owner's Manual - Page 145

MIDI Functions q Channel Messages The PSR-9000 is an electronic instrument that can handle 32 channels. This is usually expressed as "it can play 32 instruments at the same time." Channel messages transmit information such as Note ON/OFF, Program Change, for each of the 32 channels. Message Name Note ON/OFF Program Change Control Change PSR-9000 Operation/Panel Setting Messages which are generated when the keyboard is played. Each message includes a specific note number which corresponds to the key which is pressed, plus a velocity value based on how hard the key is played. Voice selecting (control change bank select MSB/LSB setting) Volume, panpot (Mixing Console), etc. q System Messages This is data that is used in common by the entire MIDI system. System messages include messages like System Exclusive Messages that transmit data unique to each instrument manufacturer and Realtime Messages that control the MIDI device. Message Name System Exclusive Message Realtime Messages PSR-9000 Operation/Panel Setting Effect type settings (Mixing Console), etc. Clock setting, Start/stop operation • The performance data of all songs, styles and Multi Pads is MIDI data. The messages transmitted/received by the PSR-9000 are shown in the MIDI Data Format and MIDI Implementation Chart on pages 192 and 208. s MIDI and TO HOST Terminals In order to exchange MIDI data between multiple devices, each device must be connected by a cable. There are two ways to connect: from the MIDI terminals of the PSR-9000 to the MIDI terminals of an external device using a MIDI cable, or from the TO HOST port of the PSR-9000 to the serial port of a personal computer using a special cable. If you connect from the PSR-9000 TO HOST terminal to a personal computer, the PSR-9000 will be used as a MIDI interface, meaning that a dedicated MIDI interface is not necessary. In the rear panel of the PSR-9000, there are two kinds of terminals, the MIDI terminals and the TO HOST terminal. MIDI A IN OUT MIDI B IN OUT HOST SELECT TO HOST PC-2 PC-1 MIDI Mac MIDI A MIDI IN MIDI OUT TO HOST Receives MIDI data from another MIDI device. Transmits the PSR-9000's keyboard information as MIDI data to another MIDI device. Transmits and receives MIDI data to and from a personal computer. The MIDI A terminals and the TO HOST terminal are mutually exclusive; they cannot be used at the same time. Use the HOST SELECT switch to change between the MIDI A terminals and the TO HOST terminal. When the HOST SELECT switch is set to "MIDI," the MIDI A terminals receive/transmit MIDI data. When the HOST SELECT switch is set to "Mac," "PC-1," or "PC-2," the MIDI A terminals will not receive/transmit data. • When using the TO HOST terminal to connect to a personal computer using Windows 95/ 98, a Yamaha MIDI driver must be installed in the personal computer. The included disk contains the Yamaha MIDI driver. • Special MIDI cables (sold separately) must be used for connecting to MIDI devices. They can be bought at music stores, etc. • Never use MIDI cables longer than about 15 meters. Cables longer than this can pick up noise which can cause data errors. • The MIDI B port ignores System Exclusive messages. The MIDI B IN/OUT terminals function regardless of the setting of the HOST SELECT switch. q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q q Reference 145 143