Yamaha DX21 - Manual (Page 46)

(3) 1 Voice Bulk Data
Received only when MIDI SYS INFO is ON. The format is the same as for the
transmitted 1 voice bulk data. The 93 voice data bytes are read into the voice edit
buffer, replacing the current voice data. The 93 received data bytes are shown in
voice parameter table 5-2.
(4) 32 Voice Bulk Data
Received only when MIDI SYS INFO is ON. The format is the same as for the
transmitted 32 voice bulk data. This data can be received only when the MEMOTY
PROTECT function is OFF. The received voice data is stored in the 32 RAM voice
memory locations. The “MIDI RECEIVED!!” display appears to confirm complete
reception of 32 voice bulk data.
(5) Dump Request
Status 11110000
ID no. 01000011
Substatus/ch. no. 0010nnnn n=channel no.
Format no. 0 f f f f f f f f=3,4
EOX 11110111
Received only when MIDI SYS INFO is ON. When received the bulk data corre-
sponding to the received format code will be dumped via MIDI OUT.
f=3: 1 voice bulk data
f=4: 32 voice bulk data
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