System Message; Active Sensing; System Exclusive Message; Universal Real Time System Exclusive Message - Casio CELVIANO PX-770 Manual

Part III

System Message

9

Active Sensing

Message Format:
Transmit This message is never sent.
Receive Once this message is received, the Active Sensing mode is entered. If no MIDI message is
received for a specified amount of time, voices being sounded by this Instrument's sound source are
released, the controller is reset, and the Active Sensing mode is exited.
10

System Exclusive Message

Message Format:
ii:
dd:
The Instrument sends and receives standard universal system exclusive messages, and system exclusive
messages that have Instrument-specific formats.
ID Number The ID numbers handed by this Instrument are shown below.
ID Number ID Name
44H Casio Computer Co. Ltd
7EH Non Real Time System Exclusive Message
7FH Real Time System Exclusive Message
Device ID The device ID is used mainly for individual control of multiple devices. When a System
Exclusive message is sent, the sending device sends messages that include a value that matches the
device ID of the sending device. When a System Exclusive message is received, the receiving device
receives only messages that include a value that matches the receiving device ID. The device ID 7FH is
a special value, and receipt is always performed whenever the device ID of either the receiving device
or the message is 7FH. MIDI Device ID is one of Spec Parameter and can be changed by the System
Exclusive Message. Device ID of MIDI System Exclusive Message in this case should be sent is set to
7FH.(Initial Value:7FH)
10.1

Universal Real Time System Exclusive Message

Message Format:
dd:
FEH
F0H iiH ddH....F7H
ID Number
Device ID
F0H 7FH ddH....F7H
Device ID
16