System Exclusive Messages; System Realtime Messages; Timing Clock - Roland Groovebox MC-307 Reference Manual

MIDI Implementation
Channel Mode messages
All Sound Off (Controller number 120)
status 2nd byte
BnH 78H
* When this message is received, all notes currently sounding on the corresponding
channel will be turned off.
* Not received when the Rx Switch parameter is OFF.
Reset All Controllers (Controller number 121)
status 2nd byte
BnH 79H
* Not received when the Rx Switch parameter is OFF.
* When this message is received, the following controllers will be set to their reset values.
Controller Reset value
Pitch Bend Change ±0 (center)
Polyphonic Key Pressure 0 (off)
Channel Pressure 0 (off)
Modulation 0 (off)
Expression 127 (maximum)
Hold 1 0 (off)
Sostenuto 0 (off)
Soft 0 (off)
Hold 2 0 (off)
RPN Unset. Previously set data will not change.
All Note Off (Controller number 123)
status 2nd byte
BnH 7BH
* When All Note Off is received, all currently sounding notes of the corresponding
channel will be turned off. However if Hold 1 or Sostenuto are on, the sound will be held
until these are turned off.
* Not received when the Rx Switch parameter is OFF.
Omni Off (Controller number 124)
status 2nd byte
BnH 7CH
* The same processing as when All Note Off is received will be done.
* Not received when the Rx Switch parameter is OFF.
Omni On (Controller number 125)
status 2nd byte
BnH 7DH
* The same processing as when All Note Off is received will be done. The instrument will
not be set to OMNI ON.
* Not received when the Rx Switch parameter is OFF.
Mono (Controller number 126)
status 2nd byte
BnH 7EH
mm=Mono number: 00H–10H (0–16)
* The same processing as when All Note Off is received will be done, and the Solo Switch
parameter will be set to ON.
* Not received when the Rx Switch parameter is OFF.
Poly (Controller number 127)
status 2nd byte
BnH 7FH
* The same processing as when All Note Off is received will be done, and the Solo Switch
parameter will be set to OFF.
* Not received when the Rx Switch parameter is OFF.

System Realtime messages

Timing Clock

status
F8H
196
3rd byte
00H
3rd byte
00H
3rd byte
00H
3rd byte
00H
3rd byte
00H
3rd byte
mmH
3rd byte
00H
* This is received when Sync Mode is SLAVE. Settings can be made to synchronize or the
LFO rate or the effect rate.
Active Sensing
status
FEH
* When an Active Sensing message is received, the unit will begin monitoring the interval
at which MIDI messages are received. During monitoring, if more than 420 ms passes
without a message being received, the same processing will be done as when All Sound
Off, All Note Off, and Reset All Controllers messages are received. Then monitoring will
be halted.

System Exclusive messages

status data byte
F0H iiH, ddH, ......, eeH
F0H: System Exclusive message status
ii = ID number: This is the ID number (manufacturer ID) that specifies the
manufacturer whose exclusive message this is. Roland's manufacturer
ID is 41H.ID numbers 7EH and 7FH are defined in an expansion of the
MIDI standard as Universal Non-realtime messages (7EH) and
Universal Realtime Messages (7FH).
dd,..., ee = data: 00H–7FH (0–127)
F7H: EOX (End Of Exclusive) This is the last status of system exclusive
message.
Universal Non-realtime System Exclusive Messages
Inquiry Request Message
Status Data byte
F0H 7EH, dev, 06H, 01H F7H
Byte Explanation
F0H Exclusive status
7EH ID number (universal non-realtime message)
dev Device ID (dev:10H(17)-1FH(32))
06H Sub ID#1 (General Information)
01H Sub ID#2 (Inquiry Request)
F7H EOX (End Of Exclusive)
* The "dev" is own device number or 7FH (Broadcast)
* When Inquiry Request is received, Inquiry Reply message will be transmitted.
Data Request 1 RQ1
This message requests the other device to transmit data. The address and size indicate the
type and amount of data that is requested.
When a Data Request message is received, if the device is in a state in which it is able to
transmit data, and if the address and size are appropriate, the requested data is transmitted
as a Data Set 1 (DT1) message. If the conditions are not met, nothing is transmitted.
The model ID of the exclusive messages used by this instrument is 00 0BH.
status data byte
F0H 41H, dev, 00H, 0BH, 11H, aaH, bbH, ccH, ddH,
ssH, ttH, uuH, vvH, sum
Byte Remarks
F0H Exclusive status
41H ID number (Roland)
dev device ID (dev: 10H–1FH)
00H model ID (MC-307)
0BH model ID (MC-307)
11H command ID (RQ1)
aaH address MSB
bbH address
ccH address
ddH address LSB
ssH size MSB
ttH size
uuH size
vvH size LSB
sum checksum
F7H EOX (End Of Exclusive)
* For the address, size, and checksum, refer to "Examples of system exclusive messages
status
F7H
Status
status
F7H