TC1796
Peripheral Units (Vol. 2 of 2)
Micro Link Interface (MLI)
User’s Manual 23-54 V2.0, 2007-07
MLI, V2.0
Another possibility to connect several MLI modules is a ring structure, with (at least) one
dedicated pipe per device. This leads to a structure where the Local Controller’s
transmitter is connected to the receiver of Remote Controller X, the transmitter of
Remote Controller X to the receiver of Remote Controller Y, and the transmitter of
Remote Controller Y to the Local Controller’s receiver.
This structure supports autonomous data generation and transfer in both Remote
Controllers, for example to transfer data generated in a Remote Controller to the Local
Controller without using Read Frames. In a ring structure, the Read Frame handling
should be avoided. It is possible for the Local Controller to access both Remote
Controllers independently. For example, the Remote Window of pipe x covers the
address range of Remote Controller X, whereas pipe y targets the Transfer Window y of
Remote Controller X. In Remote Controller Y, the pipe y targets the available address
range. If the Local Controller issues a Write Frame on pipe x, the Remote Controller X is
addressed. In case of a Write Frame on pipe y, the Remote Controller Y is targeted,
passing through a Transfer Window of Remote Controller X. The two remaining pipes
could be used for Write Frames issued by Remote Controller X (passing through a
Transfer Window of Remote Controller Y) and by Remote Controller Y.
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