Roland MT-300S Midi Implementation Manual page 4

MT 300s MIDI Implementation
● POLY (Controller number 127)
Status 2nd byte 3rd bytes
BnH 7FH 00H
n = MIDI channel number : 0H-FH (ch.1-ch.16)
* The same processing will be carried out as when All Sounds Off and All Notes Off is
received, and the corresponding channel will be set to Mode 3.
■ System Realtime Message
● Active Sensing
Status
FEH
* When Active Sensing is received, the unit will begin monitoring the intervals of all fur-
ther messages. While monitoring, if the interval between messages exceeds 420 ms, the
same processing will be carried out as when All Sounds Off, All Notes Off and Reset All
Controllers are received, and message interval monitoring will be halted.
■ System Exclusive Message
Status Data byte
F0H iiH, ddH, ......, eeH
F0H :System Exclusive Message status
ii = ID number :an I.D number (manufacturer ID) to indicate the manufacturer whose
Exclusive message this is. Roland's manufacturer ID is 41H.
ID numbers 7EH and 7FH are extensions of the MIDI standard; Universal
Non-realtime Messages (7EH) and Universal Realtime Messages (7FH).
dd,...,ee = data: 00H-7FH (0-127)
F7H : EOX (End Of Exclusive)
The System Exclusive Messages received by the MT-300s are; messages related to mode set-
tings, Universal Realtime System Exclusive messages and Data Set (DT1).
● System exclusive messages related to mode settings
These messages are used to initialize a device to GS or General MIDI mode, or change the
operating mode. When creating performance data, a "Turn General MIDI System On" mes-
sage should be inserted at the beginning of a General MIDI score, and a "GS Reset" mes-
sage at the beginning of a GS music data. Each song should contain only one mode mes-
sage as appropriate for the type of data. (Do not insert two or more mode setting messages
in a single song.)
"Turn General MIDI System On and "Turn General MIDI System Off" use Universal Non-
realtime Message format. "GS Reset" use Roland system exclusive format "Data Set 1
(DT1)."
❍ Turn General MIDI System On
This is a command message that resets the internal settings of the unit to the General MIDI
initial state (General MIDI System-Level 1). After receiving this message MT-300s, will
automatically be set to the proper condition for correctly playing a General MIDI score.
Status Data byte
F0H 7EH, 7FH, 09H, 01H
Byte Explanaton
F0H Exclusive status
7EH ID number (Universal Non-realtime Message)
7FH Device ID (Broadcast)
09H Sub ID#1 (General MIDI Message)
01H Sub ID#2 (General MIDI On)
F7H EOX (End Of Exclusive)
* When this message is received, Rx.BANK SELECT will be OFF and Rx.NRPN will be
OFF.
* There must be an interval of at least 50 ms between this message and the next message.
4
Status
F7H
Status
F7H
❍ General MIDI System Off
Status Data byte
F0H 7EH, 7FH, 09H, 02H
Byte Explanation
F0H Exclusive status
7EH ID number (Universal Non-realtime Message)
7FH Device ID (Broadcast)
09H sub-ID#1 (General MIDI message)
02H sub-ID#2 (General MIDI Off)
40H EOX (End of exclusive)
* There must be an interval of at least 50 ms between this message and the next.
❍ GS reset
GS Reset is a command message that resets the internal settings of a device to the GS initial
state. This message will appear at the beginning of GS music data, and a GS device that
receives this message will automatically be set to the proper state to correctly playback GS
music data.
Status Data byte
F0H 41H, 10H, 42H, 12H, 40H, 00H, 7FH, 00H, 41H
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
10H Device ID (dev: 00H-1FH (1-32), Initial value is 10H (17))
42H Model ID (GS)
12H Command ID (DT1)
40H Address MSB
00H Address
7FH Address LSB
00H Data (GS reset)
41H Checksum
F7H EOX (End Of Exclusive)
* When this message is received, Rx.NRPN will be ON.
* There must be an interval of at least 50 ms between this message and the next.
❍ Exit GS mode
Status Data byte
F0H 41H, 10H, 42H, 12H, 40H, 00H, 7FH, 7FH, 42H
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
10H Device ID
42H Model ID (GS)
12H Command ID (DT1)
40H Address MSB
00H
:
7FH Address LSB
7FH Data (Exit GS mode)
42H Checksum
F7H EOX (End of exclusive)
* There must be an interval of at least 50 ms between this message and the next.
● Universal Realtime System Exclusive Messages
❍ Master volume
Status Data byte
F0H 7FH, 7FH, 04H, 01H, llH, mmH
Byte Explanation
F0H Exclusive status
7FH ID number (universal realtime message)
7FH Device ID (Broadcast)
04H Sub ID#1 (Device Control messages)
01H Sub ID#2 (Master Volume)
llH Master volume lower byte
mmH Master volume upper byte
F7H EOX (End Of Exclusive)
* The lower byte (llH) of Master Volume will be handled as 00H.
Status
F7H
Status
F7H
Status
F7H
Status
F7H