Parameter Change; Supplemental Information 1 - Yamaha DME24N Service Manual

DME24N/DME64N
4.5 Parameter Change (F0h ~ F7h)
Receive
When the "Parameter Change Rx Switch" is On, Parameter Change messages are received on the MIDI channel specified
by the "Device ID (Rx Ch)" parameter.
Transmit
When the "Parameter Change Tx Switch" is On, appropriate Parameter Change data will be transmitted when a parameter
is edited via the panel controls, as specified by the "MIDI Parameter Change table" and "MIDI Tx Channel" settings.
Refer to "Supplementary Information 1" for cases in which multiple messages are assigned to single parameter.
Refer to "Supplemental Information 2" for information on setting Parameter Data values.
Status
ID No.
DEVICE ID.
GROUP ID.
MODEL ID.
Parameter
Address
Parameter
Data Value
EOX

Supplemental Information 1

Messages Transmitted When Multiple Messages are Assigned to the Same Parameter
The DME24N/64N MIDI transmit messages are specified via the "MIDI Control Change Table" and "MIDI Parameter
Change Table." The "MIDI Control Change Table" and "MIDI Parameter Change Table" can be set up via the DME
Designer application.
Multiple messages can be assigned to a single parameter, but the DME24N/64N will only transmit one of the assigned
messages.
The transmitted messages are as follows:
• If a Control Change message and a Parameter Change message are assigned to the same parameter the Control Change
message will be transmitted.
• If multiple Control Change numbers are assigned to the same parameter the smallest Control Change number
message will be transmitted.
• If multiple Parameter Change numbers are assigned to the same parameter the smallest Parameter Change number
message will be transmitted.
Supplemental Information 2
Setting the Parameter Change Message Parameter Data Values
The Parameter change parameter values are expressed as 32-bit integers with or without parity.
• A parity bit (positive: 0, negative: 1) is added above the most significant value bit (bit 31).
• Fractional parameters will be converted according to the integer table.
• For integers with parity, negative numbers are expressed as the 2's complement.
0 0
data 0
Example
• When value is 1000 (decimal) / 3E8h (hexadecimal):
+
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 1 0 0 0
data 0 = 00h
• When value is 1000 (decimal) / FFFFFC18h (hexadecimal; 2's complement of 3E8h):
-
0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 1 0 0 0
data 0 = 1Fh
150
F0h (11110000b)
43h (01000011b)
10h (0001xxxxb)
3Eh (00111110b)
10h (00010000b)
aah (0aaaaaaab)
aah (0aaaaaaab)
ddh (0dddddddb)
ddh (0dddddddb)
ddh (0dddddddb)
ddh (0dddddddb)
ddh (0dddddddb)
F7h (11110111b)
data 1
0 0 0
data 1 = 00h data 2 = 00h
F F F
data 1 = 7Fh data 2 = 7Fh
System Exclusive Message
Manufacturer's ID No.(YAMAHA)
Rx/Tx Channel (0-15)
Digital Mixer
Device Code (DME)
Parameter Address High
Parameter Address Low
data 0
data 1
data 2
data 3
data 4
End of Exclusive
data 2 data 3
0 0 3
data 3 = 07h
F F C
data 3 = 78h
data 4
E 8
data 4 = 68h
1 8
data 4 = 18h