Yamaha tx81z Service Manual page 13

TX81Z
TXS1Z
MIDI
DATA FORMAT
The
TX81Z
responds
to
MID!
messages
as
shown
in
the
diagram
-
BCH
indicates Basic Rev.
Ch.
and
RCN
indicates the receive channel
for
an
individual instrument
,
G1-G1G
indicates the
Global Channel
for Controller
or Pitch
Bend.
*ln
the case of Control
Change
J
'Pan
jr
(Bn.QA.xx), data values of Q
—
42
=
output
I,
43
—
35 = output
I
+
II
and 86
~
127 = output
fl
H
* System
Common
messages
Flh F7h and System Realtime messages
F8h-FDh
and
FFh
are ignored.
*Dnce an Active Sensing message
FEh
is
received, the
TX81Z
will
expect
a
continuing stream
of
MIDI
mes-
sages.
If
no
messages
come
for
a
period of
about 300
msec,
it
dears the
MIDt
input buffer
and
turns off
any
notes that
are
currently sounding.
PG&t|
Crtg
IT
~C3Z
-*0
-
127
01
-
D32-J-0
-31
PFMI
-
24
-+32
™
&H
MIDI
OUT
13