Technics SX-KN650

Communication
sequence
between
master
unit
and
slave
unit
m Communication sequence of handshake
confirmation
HRT
command:
handshake
routine
Master unit Slave unit
HRQ command } —-—__
+————_ |HRT command
HRT command | —-——+
———— _ {ACK ACK: Acknowledge
(21H for KN550)
HRQ command: handshake request
e There is no END command.
¢ If there is no response from the slave unit to
(21H
for
KN550)
the
master
unit
even
after
the
above
hand-
shake confirmation routine is performed three
times, it is interpreted as inability to transmit
handshake transmission data, and the trans-
mission mode switches to one-way transmis-
sion (in the case of a MIDI sequencer, etc.).
m™ Sequence of data dump communication
DT: Body of data
:
:
e
Data
is
sent
in
the
following
order.
Master
unit
Slave
unit
¢
There
is
no
COMPOSER
data
for
the
KN550.
Body
of
data
|
—____.
S0%
-————-
|
ACK
ra
Ce
Panel
data
beginning
data
EOK
command
Panel
data
continuing
data
———
|
ACK
:
:
END
command
|
————~
Panel
data
ending
data
+~—————
|
ACK
COMPOSER
location
COMPOSER header
COMPOSER dummy
COMPOSER
performance
data
beginning
data
COMPOSER performance data continuing data
COMPOSER performance data ending ‘data
SEQUENCER ID ;
SEQUENCER header
SEQUENCER performance data beginning data
SEQUENCER
performance
data
continuing
data
SEQUENCER performance data ending data
EOX