19.3.18EOX : End of System Exclusive Message
Format: 11110111B
This is the End of System Exclusive Message status byte established by the MIDI standard.
20 Individual Parameter Operations
There are two parameter unit operations: Individual Parameter Transfer and Individual Parameter Request. For one session, in response to an IPR (Individual Parameter Request) from an external device, this Instrument returns an IPS (Individual Parameter Send) or the session is concluded when the external device or this Instrument spontaneously sends an IPS. If this Instrument received an IPS, the value of the applicable parameter is changed. Depending on the function of a parameter, Individual Parameter Send may be used to issue a command to the Instrument and Individual Parameter Request may be used to check Instrument status information.
Data Receiver |
| Data Sender |
| Operation |
IPR | → |
|
| Send Request(Optional) |
| ← | IPS |
| Data Transfer |
21 Parameter Set Transfer
21.1Communication Modes
21.1.1
In order to ensure maximum speed for bulk dumping of Parameter Sets, the data format is different from the data format used for Individual Parameter Send. Data is transferred
•
•
•Handshake mode Parameter Set send/receive
•Handshake mode Parameter Set send request, receive rejected, error notification send/receive
With the
With the handshake mode, the sending device sends the data and then waits for a response from the receiving device before advancing to the next session. This is a
See “VI Parameter Set List” for details about Instrument parameter sets.
21.1.2Session and Subsession
Subsession “One subsession” refers to transfer of one parameter set. A subsession transfers one parameter set or a parameter set that has been divided into multiple packets for transfer, with EOD (End of Data) at the end to terminate the send. Division of a parameter set into multiple packets is used when the size of the parameter set is greater than a prescribed size. The packet number in the packet index field indicates the sequential position of a packet relative to the other packets. A single packet cannot be used to transfer multiple small parameter sets. A parameter set delimiter always must be transferred as a packet delimiter.
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