Yamaha tx7 Service Manual page 6

MIDI
DATA FORMAT
1.
Reception conditions
MIDI IN
SFE
S80
S90
SBO, SOI
SBO.
S02
SBO.
SO
4
SBO, S05
SBO.
$07
SBO,
S40
SBO. S41
SCO
SDQ
SEO
SBO, S60
SBO. $61
SBO. S06
SBO. S06
SFO. $43. SOO.
SO
2
SFO. S43.
SOO.
S09
SFO.
S43. SOO.
SOO
SFO, S43.
SOO.
SOI
SFO. $43. S10
cro.
fi4 3.
cso
SBO. S7C
SBO. S7D
SBO. S7E
SBO,
S7F
ACTIVE SENSING
NOTE OFF
NOTE ON
MOD.
WHEEL
BREATH CONTROL
FOOT CONTROL
PORTAMENTO TIME
VOLUME
SUSTAIN SWITCH
PORTAMENTO
SWITCH
PROGRAM CHANGE
AFTER TOUCH
PITCH
BENDER
INCREMENT
DECREMENT
DATA ENTRY
DATA ENTRY
=
Volume
64
PERFORMANCE
BULK
32 VOICE
BULK
I
VOICE
BULK
I
PERFORMANCE BULK
PARAMETER CHANGE
DUMP
ntTOUETST
OMNI
OFF
OMNI ON
MONO
POLY
2.
Reception data
2-1
Reception Channel,
Omni
Using the panel switches,
you
may
select
the
TX7 MIDI
reception
basic
channel 1-16 and
OMNI ON/OFF
,
and store
this in
memory. When
OMNI OFF, only data with
a
chan-
nel
number corresponding to the basic
reception channel
will
be received,
but
when
OMNI
ON,
data for, ail
channels
will
be received.
2-2
Channel Voice Messages
2-2-1
Key
OFF
Status
1
0
00nnnnn
= channel number.
Note
no.
0 k k k k k k k
k
= 0
(C-2)
--
127 (G8)
Velocity 0 v v v
v
v
v v v
:
ignored
2-2-2 Key
ON/OFF
Status
1
0 0
1
n
n n n
n = channel number
Note no. 0 k
kkkkkkk-0
(C-2)
-
127 (G8)
Velocity
0
v
vvvvvvv
= 0 Key
OFF
v
-
1
-
127
Key
ON
2-2-3
Control change
Status
10
1 1
n n n n
Control No.
Occccccc
Control value
Ovvvvvvv
(a)
Data received
when
CONTROL CHANGE
RECEIVE
SWITCH ON
C -
1
Modulation
C
- 2
Breath
controller
0*4
Foot controller
C - 5
Portamento time
C
=
7
Volume
C * 64
Sustain
SW.
C = 64
Portamento SW.
(b) Data received
when
DATA ENTRY RECEIVE SWITCH
ON
C = 6 Data entry
C = 96 Increment
C =
97
Decrement
This data
will
change the voice
or
function parameter
which
has
been
selected
by
a
system exclusive mes-
sage.
(c)
Data received
when
DATA ENTRY VOLUME ON
C =
6
Data entry
The
data entry data will
be received
as
volume
data.
2-2-4
Program change
Status
1
lOOnnnn
Program
no.
Oppppppp
It
will
disregard the 2
most
significant bits
of
program
no. and
select
programs 1-32.
This
will
De received only
when
the
TX7
is
in
pro-
gram change mode
{COMBINED
or
INDIVIDUAL),
2-2-5 After
touch
Status 1 1
0
1
n n n n
Pressure
Ovvvvvvv
2-2-6 Pitch
bend
Status
1 1 1
0 n n n n
Value (LSB)
Ouuuuuuu
Value (MSB)
Ovvvvvvv
8
bit
resolution
2-3
Channel
Mode
Messages
Status
10
1
1
n n
n n
Occccccc
Ovvvvvvv
C = 124
V=0 OMNI MODE OFF
C
=
125
V =
0
OMNI
MODE ON
C
=
126
V
=
1
MONO MODE ON
C
= 127 V =
0
POLY
MODE ON
OMNI ON/OFF may
also be selected using
panel switches.
Whichever signal arrives
last
has priority.
When the
mode
is
changed, the
voice will
be
dumped and
key
assign will
be cleared.
2-4
System Realtime Messages
Status
11111110
active sensing
Once
this
code has
been received, sensing
will
begin.
If it
does not receive any data or
status for longer than 300 ms,
it
will
dump
voice, clear
key
assign, set sustain
pedal off,
set
portamento switch on,
and
stop sensing.
2-5
System
Exclusive
Messages
2-5-1
1
voice bulk data
Status
11110000
ID
01000011
Substatus/ch
OOOOnnnnn*
channel number
Byte count
00000001
Byte count 0 0 0
1 1
0
1
1
Data
Oddddddd
^
j
155 bytes
Oddddddd
'
Check sum
Oeeeeeee
The 155 bytes of voice data
will
enter the edit buffer
and the
voice of the currently sounding note will
change.
Check sum
is
the lowest 7
bits
of the sum
of
all
the data bytes.
-
10
-
TX7