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5
MIDI Implementation
m
Data set 1 DT1 (12H)
Status Data byte Status
F0H 41H, dev, 00H, 00H, 41H, 12H, aaH, bbH,
ccH, ddH, eeH, ... H, sum
F7H
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
dev Device ID (dev: 00H - 1FH, 7FH)
00H Model ID #1 (SH-01)
00H Model ID #2 (SH-01)
41H Model ID #3 (SH-01)
12H Command ID (DT1)
aaH Address MSB: upper byte of the starting address of the data
to be sent
bbH Address: upper middle byte of the starting address of
the data to be sent
ccH Address: lower middle byte of the starting address of
the data to be sent
ddH Address LSB: lower byte of the starting address of the data
to be sent.
eeH Data: the actual data to be sent. Multiple bytes of
data are transmitted in order starting from the
address.
: :
H 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 specied starting address and size. Refer
to the address and size given in “Parameter Address Map” (p. 8).
* 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. 20)
m
Data set 1 DT1 (12H)
Status Data byte Status
F0H 41H, dev, 42H, 12H, aaH, bbH, ccH, ddH, ...
eeH, sum
F7H
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
dev Device ID (dev: 10H - 1FH, 7FH)
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 specied starting address and size. Refer
to the address and size given in “Parameter Address Map” (p. 8).
* 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. 20)