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(2) LINK LAYER (LINK)
Electric signals detected by the PHY are decoded in the logic layer to detect the contents of the signal. This detecting layer is the logic
layer. The logic layer is called LINK. In LISSA series i.LINK circuit, one IC (CXD3202AR) controls operations. It also has a PLL circuit to
read received audio signals.
read received audio signals.
In LINK, i.LINK signals are decided to verify the destination sent to and type. If the destination is another device, the contents will be
ignored. If the destination is itself or all devices, the type of signal will be verified. If the type can be read by itself, the i.LINK signal is output
to the application layer. If the type cannot be read, the application layer is notified that it cannot be read.
to the application layer. If the type cannot be read, the application layer is notified that it cannot be read.
If the unit is the ROOT which is the master of the system, the i.LINK sync signal is controlled by LINK. Consequently, power is supplied
to LINK like PHY even when the power is OFF.
(3) Application layer
The i.LINK signal output from LINK is received as a command. The layer performing the main operations of the unit is the application
layer. The microprocessor controls the operations in the i.LINK circuit of the LISSA series.
SYSTEM CONTROL
LINK
CDP-LSA1
MDS-LSA1
STR-LSA1
PHY
SYSTEM CONTROL
LINK
PHY
SYSTEM CONTROL
LINK
PHY
Fig. 1-2. Connection of Unit
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