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A•28 Appendix
DATA PACKET:
F0H = System Exclusive Message status
7EH = Non-Real Time extension
cc = device ID
02H=DATA PACKET ID
kk = running packet count (0-127)
<120 bytes> = data (7 bit data format)
ll = checksum (XOR of 7E cc kk <120 bytes>)
F7H = EOX
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 = device ID
mm = Manufactures Sistem Exclusive id code
ff ff = Device family code (14 bits, LSB first)
dd dd = Device family member code (14 bits, LSB first)
ss ss ss ss = Software revision (format device specific)
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
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