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2 enabling connections to tsa or nmsi, Enabling connections to tsa or nmsi -3 – Motorola MPC8260 User Manual

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MOTOROLA

Chapter 15. CPM Multiplexing

15-3

Part IV. Communications Processor Module

The multiple-PHY addressing selection supports the following options for FCC1 and
FCC2:

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In master mode:

Ñ FCC1 connect up to 31 PHYs and FCC2 connect up to 7 PHYs.

Ñ FCC1 connect up to 15 PHYs and FCC2 connect up to 15 PHYs.

Ñ FCC1 connect up to 7 PHYs and FCC2 connect up to 31 PHYs.

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In slave mode:

Ñ FCC1 connect up to 31 PHYs and FCC2 connect to 0 PHYs.

Ñ FCC1 connect up to 15 PHYs and FCC2 connect up to 1 PHYs.

Ñ FCC1 connect up to 7 PHYs and FCC2 connect up to 3 PHYs.

Ñ FCC1 connect up to 3 PHYs and FCC2 connect up to 7 PHYs.

Ñ FCC1 connect up to 1 PHYs and FCC2 connect up to 15 PHYs.

Ñ FCC1 connect to 0 PHYs and FCC2 connect up to 31 PHYs.

15.2 Enabling Connections to TSA or NMSI

Each serial device can be independently enabled to connect to the TSA or to dedicated
external pins, as shown in Figure 15-2. Each FCC can be connected to a dedicated MII or
to the eight TDMs. FCC1 can also be connected to an 8- or 16-bit UTOPIA level-2
interface. FCC2 can also be connected to an 8-bit UTOPIA level-2 interface. Each SCC or
SMC can be connected to the eight TDMs or to its own set of pins. Once connections are
made to the TSA, the exact routing decisions are made in the SIx RAMs.