Generalmusic GEM SK760 Instructivo De Instalacion Y Guia Del Usuario página 358

DATA PACKET:
F0H =
7EH =
cc =
02H =
kk =
<120 bytes> =
ll =
F7H =
DEVICE INQUIRY
To be able to identify a MIDI device, the following two messages are utilized; the first used for the inquiry:
INQUIRY MESSAGE:
F0H = System Exclusive Message status
7EH = Non-Real Time extension
cc = device ID
06H = INQUIRY ID
01H = Identity Request
F7H = EOX
and the second for the device response:
RESPONSE MESSAGE:
F0 7E cc 06 02 mm ff ff dd dd ss ss ss ss F7
cc =
mm =
ff ff =
dd dd =
ss ss ss ss =
UNIVERSAL REAL TIME SYSTEM MESSAGES
DEVICE CONTROL
These messages are used to control the general functions of the system, without refering to a specific MIDI channel and, there-
fore, inserted in the context of the Universal messages.
Master Volume:
F0H = System Exclusive Message status
7FH = Real Time extension
cc = device ID
04H = Device Control ID
01H = Master Volume ID
vv vv = Volume (LSB first)
F7H = EOX
○ ○ ○ ○ ○ ○ ○ ○ ○ ○
A•28 Apéndice
System Exclusive Message status
Non-Real Time extension
device ID
DATA PACKET ID
running packet count (0-127)
data (7 bit data format)
checksum (XOR of 7E cc kk <120 bytes>)
EOX
device ID
Manufactures Sistem Exclusive id code
Device family code (14 bits, LSB first)
Device family member code (14 bits, LSB first)
Software revision (format device specific)
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○