Yamaha RX-11 Owner's Manual - page 28
8. BULK DUMP REQUEST
This MIDI signal, when received by the RX11, initiates
bulk data transmission from the RX11 to an external
MIDI device. Communication is only possible with another
RX11 or peripherals specifically designed to operate with
the RX11.
MIDI Data Type: SYSTEM INFORMATION SYSTEM
EXCLUSIVE DATA.
Reception: BULK DUMP REQUEST from external MIDI
equipment initiates BULK DATA transmission from
RX11 during pattern or song modes. Set SYSTEM EX-
CLUSIVE to AVAIL, and set SYSTEM EXCLUSIVE
CHANNEL to agree with transmitting equipment.
Transmission: The BULK DUMP REQUEST signal is not
transmitted by the RX11.
In addition to the above functions, an EXTERNAL SYNC
mode permits synchronizing the RX11 to non-MIDI clock
signals (gate clock signals) from some non-MIDI sequencers
and rhythm machines.
Sync Modes
The RX11 offers three sync modes which function as follows:
1 – INTERNAL – This is the normal RX11 mode. The
playback of patterns and songs is synchronized to the RX11’s
own internal clock, the speed of which is adjusted by the
TEMPO control and TEMPO functions. The internal mode is
also used when external sequencers or rhythm machines are
to be synchronized to the RX11’s internal clock, which is
transmitted via the MlDI OUT connector.
2 – MIDI – In this mode the playback of patterns and songs
is synchronized to a MIDI clock signal received from an
external sequencer, music computer or another rhythm
machine via the MIDI IN connector on the RX11 rear panel.
In this case the tempo must be controlled at the device
which is transmitting the MIDI clock signal.
3 – EXTERNAL – This is actually a non-MIDI function,
permitting the RX11 to be synchronized to a gate-type clock
from sequencers and rhythm machines that employ this
type of clock system. When the EXTERNAL sync mode is
activated, the synchronizing clock is received at the RX11
CASSETTE IN jack rather than at the MIDI IN connector.
The desired sync mode is selected by pressing the SYNC
button while holding down the FUNCTION button. Nor-
mally, the LCD panel will read “INTERNAL CLOCK”
indicating that the internal sync mode is selected. To select
other modes, press the -1/NO button. Each press of the
-1/NO button cycles the sync mode in the following order:
I N T E R N A L M I D I E X T E R N A L INTERNAL etc.
Set the display to the desired mode then press +1/YES
activate that mode. When either the MIDI or EXTERNAL
clock modes are selected, the red “EXT. CLK” indicator on
the RX11 display panel will light.
Sync Mode Selection
MIDl Reception Parameters
Three main parameters must be set in order to receive MIDI
d a t a :
1 – CHANNEL INFO AVAILABLE/UNAVAILABLE –
This parameter simply turns MIDI key number reception on
or off. “CH INFO AVAIL” = MIDI key number reception
is ON, “CH INFO UNAVAIL” = MIDI key number reception
is OFF.
2 – OMNI MODE ON/OFF – When the OMNI mode is ON,
the RX11 will receive MIDI data on all 16 available MIDI
channels. This is the mode that will normally be used in
setups where one MlDI transmitting device (a sequencer, etc)
is controlling only the RX11. In some systems, however,
the MIDI transmitting device may be required to control
several different MIDI receiving devices in different ways.
In this case, the OMNI mode must be turned OFF and the
RX11 set to receive only on the MIDI channel containing
pertinent data.
3 – RECEIVE CHANNEL (1 through 16) – When the OMNI
mode is turned OFF, the RX11 must be set to receive MIDI
data on a specific channel. The sequencer or music computer
used to transmit the MlDI data might, for example, be trans-
mitting melody data to a synthesizer on channel 1, and rhythm
data to the RX11 on channel 2. The RX11 must therefore
be set to receive on channel 2 only, to prevent the melody
data from triggering the rhythm machine.
In some cases it may be necessary to continue and set the
instrument key numbers as described in the “Instrument
Key Numbers” section, below.
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