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MIDI Implementation
Appendices
eeH Data: the actual data to be sent. Multiple bytes of data are transmitted in order
starting from the address.
: :
ffH Data
sum Checksum
F7H EOX (End Of Exclusive)
* The amount of data that can be transmitted at one time depends on the type of data, and
data will be transmitted from the specified starting address and size. Refer to the
Address and Size given in Section 3, “Parameter address map.
* Data larger than 256 bytes will be divided into packets of 256 bytes or less, and each
packet will be sent at an interval of about 20 ms.
* Not received when the Receive Exclusive parameter (SYSTEM/COMMON) is OFF.
Status Data byte Status
F0H 41H, dev, 42H, 12H, aaH, bbH, ccH, F7H
ddH, ... eeH, sum
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
dev Device ID (dev: 10H)
42H Model ID (GS)
12H Command ID (DT1)
aaH Address MSB: upper byte of the starting address of the transmitted data
bbH Address: middle byte of the starting address of the transmitted data
ccH Address LSB: lower byte of the starting address of the transmitted data
ddH Data: the actual data to be transmitted. Multiple bytes of data are transmitted starting
from the address.
: :
eeH Data
sum Checksum
F7H EOX (End Of Exclusive)
* The amount of data that can be transmitted at one time depends on the type of data, and
data will be transmitted from the specified starting address and size. Refer to the
Address and Size given in Section 3, “Parameter address map.
* Data larger than 256 bytes will be divided into packets of 256 bytes or less, and each
packet will be sent at an interval of about 20 ms.
* Regarding the checksum, please refer to (p.$$$)
* Not received when the Receive Exclusive parameter (SYSTEM/COMMON) is OFF.
2. Data transmission (sound source
section)
■Channel Voice Messages
When execute the GM Data Transfer, the following Program Change and Control Change
will transmit.
●Control Change
❍Bank Select (Controller number 0, 32)
Status 2nd byte 3rd byte
BnH 00H mmH
BnH 20H llH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
mm, ll= Bank nunber: 00 00H - 7F 7FH (bank.1 - bank.16384)
❍Portamento Time (Controller number 5)
Status 2nd byte 3rd byte
BnH 05H vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv = Portamento Time: 00H - 7FH (0 - 127)
❍Data Entry (Controller number 6, 38)
Status 2nd byte 3rd byte
BnH 06H mmH
BnH 26H llH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
mm, ll = the value of the parameter specified by RPN/NRPN
mm = MSB, ll = LSB
❍Volume (Controller number 7)
Status 2nd byte 3rd byte
BnH 07H vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv = Volume: 00H - 7FH (0 - 127)
❍Panpot (Controller number 10)
Status 2nd byte 3rd byte
BnH 0AH vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv = Panpot: 00H - 40H - 7FH (Left - Center - Right),
Initial value = 40H (Center)
❍Portamento (Controller number 65)
Status 2nd byte 3rd byte
BnH 41H vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv = Control value: 00H - 7FH (0 - 127) 0 - 63 = OFF, 64 - 127 = ON
❍Resonance (Controller number 71)
Status 2nd byte 3rd byte
BnH 47H vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv= Resonance value (relative change): 00H - 7FH (-64 - 0 - +63)
❍Release Time (Controller number 72)
Status 2nd byte 3rd byte
BnH 48H vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv = Release Time value (relative change): 00H - 7FH (-64 - 0 - +63)
❍Attack time (Controller number 73)
Status 2nd byte 3rd byte
BnH 49H vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv = Attack time value (relative change): 00H - 7FH (-64 - 0 - +63)
❍Cutoff (Controller number 74)
Status 2nd byte 3rd byte
BnH 4AH vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv = Cutoff value (relative change): 00H - 7FH (-64 - 0 - +63)
❍Decay Time (Controller number 75)
Status 2nd byte 3rd byte
BnH 4BH vvH
n = MIDI channel number: 0H - FH (Ch.1 - 16)
vv = Decay Time value (relative change): 00H - 7FH (-64 - 0 - +63)