Casio CTK-691 Midi Implementation

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In the case of the WK-3500, for example, when a communication request is received from an external source
while floppy disk control is being performed, BSY is returned to an external device that sends BDS, BDR, HDS,
HDR.
When the BSY is received, the receiver must wait until this Model enters a session-enabled mode, or use a
Prepare for Data Management parameter (see "20.2 Data Management Command List") to change to a
communication-enabled mode.
The same packet is resent when a checksum mismatch or incompatible data structure error is detected.
Data Receiver Data Sender Operation
BDR → Send Request
← BSY Busy
(Send Canceled)
Data Receiver Data Sender Operation
BDS → Data Send
← BSY Busy
(Send Canceled)
Data Receiver Data Sender Operation
HDR → Send Request
← BSY Busy
(Send Canceled)
Data Receiver Data Sender Operation
HDS → Data Send
← BSY Busy
(Send Canceled)

Casio CTK-691 Specifications

General

Brand	Casio
Model	CTK-691
Category	Synthesizer
Language	English