1. First steps in Reaktor Core - Native Instruments

4.2. Object Bus Connections
Object Bus Connections (OBC) are a special type of connection between
modules. An OBC connection between two modules declares that they share
some internal object. The most typical case of modules using OBC connections
are memory Read and Write modules, which would share a common memory
if connected by an OBC.
The functionality of the Write module is to write a value that is incoming at its
input, to the OBC-shared memory. The functionality of the Read module is to
read a value from the OBC-shared memory in response to an incoming clock
signal (C input). The read value is sent to the output of the Read module.
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The above structure implements the functionality of the Latch macro (in fact,
it is the internal structure of the Latch macro). The M and S pins of Read and
Write modules are pins of Latch OBC type. The M pin is the master connection
input, the S pin is the slave connection output. The master input of the
Read module is connected to the slave output of the Write module (the other
two master and slave pins are unused). Therefore in this structure the Write
and Read modules share the common memory.
In the next structure, there are two pairs of Write and Read modules. Each
pair has its own memory. Notice that the connection in the middle (from the
output of Read to the input of Write) is not an OBC connection.
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One could ask what the difference is between master and slave. From the
point of view of owning the shared object (in this case memory), there is no
difference. However, as you may remember from a previous section of this
manual, there is a rule that upstream modules are processed before downstream
modules when processing simultaneous events. Therefore, in the two
REAKTOR CORE – 69